It is assumed to be present only once, hence just the name of the element. 6 - hexa . 0 0. Mono- 2 Di- 3 Tri- 4 Tetra- 5 Penta- 6 Hexa- 7 Hepta- 8 Octa- 9 Nona- 10 Deca- 11 Undeca- 12 Dodeca- If the last letter of the prefix is an a and the first letter of the element is a vowel, the a is dropped. mono di tri tetra penta hexa hepta octa nona deca Writing the name: PCl5 MOLECULAR COMPOUNDSNON-METAL + NON-METAL phosphorus chlorine ide chloride 1 RULE #3: Eliminate the prefix “mono” if it is attached to the first element (the element on the left) = phosphorus pentachloride 19. Di Tri Tetra. That makes V 2 O 5 divanadium pentoxide (instead of pentaoxide). In the following prefixes, a final vowel is normally dropped before a root that begins with a vowel, with the exceptions of bi-, which is bis-before a vowel, and of the other monosyllables, du-, di-, dvi-, tri-, which are invariable.. The following is meant to aid you in your understanding of the English
Source(s): mono di tri next: https://tr.im/eMvt5. The prefixes for identical groups are mono, di, tri, tetra, penta, hexa, hepta, octa, nona, and deca. Naming still . Language. The names of all binary molecular compounds end in –ide, just as was the case for binary ionic compounds. When naming molecular compounds prefixes are used to dictate the number of a given element present in the compound. Note that in a polyatomic ion, the ion itself is held together by covalent bonds. The prefixes are only used in Type III compounds which are Covalent Bonds. back in London, and of the ghostly neo-Pythagorean cult of tetralatry or worship of the number four, currently the rage in certain European circles; Synonyms []. The halogen prefixes are fluor, chlor, brom, and iod. 7. octa. Pages 6. Second element is named as an Anion (suffix "-ide") 3. For example: 0 0. All Rights Reserved. triiodine … google_ad_slot = "2147476616";
ALWAYS use a hyphen between a number and a letter. Examples are given. No Flash, No Problem. Naming Binary Molecular Compounds. , Naming Covalent Compounds Naming Binary Ionic Compounds Polyatomic Ions Naming with Polyatomic Ions Naming with Roman Numerals Formula Writing Naming Acids. The number of isomers for mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, and decabromodiphenyl ethers are 3, 12, 24, 42, 46, 42, 24, 12, 3 and 1, respectively. The amount of the first element is only shown, if it is present more than once. Naming Binary Covalent Compounds. Binary acids (H plus a nonmetal element) are acids that dissociate into hydrogen atoms and anions in water. 2. Here is a list of common Greek prefixes used in naming polygons and polyhedra. 7 - hepta . Mono is rarely used in organic chemistry. Learn the prefixes for identical groups and the halogen prefixes. First element: if only one of them no prefix and the name is the same; Second element: always gets a prefix and the name ends in -ide mono- six : hexa- two : di- seven : hepta- three : tri- eight : octa- four : tetra- nine : nona- five : penta- ten : deca- Example #1 - write the name for N 2 O. Notice that the second element in the name ends in –ide. RE: mono, di, tri what is next.? Prefix Number of occurrences mono- 1 di- 2 tri- 3 tetra- 4 penta- 5 hexa- 6 hepta- 7 octa- 8 nona- 9 deca- 10 Di Tri Tetra. 2. 1 mono; 2 di; 3 tri; 4 tetra; 5 penta; 6 hexa; 7 hepta; 8 octa; 9 ennea; 10 deca; 11 hendeca; 12 dodeca mono: 6: hexa: 2: di: 7: hepta: 3: tri: 8: octa: 4: tetra: 9: nona: 5: penta: 10: deca: Examples: CO 2 = carbon dioxide P 4 S 10 = tetraphosphorus decasulfide Naming Inorganic Acids. Vocabulary words in Trisyllabic. Source(s): mono di tri next: https://tr.im/eMvt5. Instead when we name molecular compounds we use prefixes, like mono, di, or tri. dinitrogen: 3. Mono: Een Di: Twee Tri: Drie Tetra: Vier Penta: Vijf Hexa: Zes Hepta: Zeven Octa: Acht Nona: Negen Deca: Tien Undeca: Elf Dodeca: Twaalf Als een numerieke aanduiding een atoom of atoomgroep betreft die reeds een Grieks numeriek prefix in zich draagt, wordt gebruikgemaakt van onderstaande prefixen: Prefix Betekenis Bis: Twee Tris: Drie Hi, sorry if my title doesn't make much sense, I'm looking to see if anyone knows the list of prefixes that go in front of elements sometimes in chemistry. I have: mono di tri _____? If a ligand already has a prefix or is polydentate, the prefixes bis-, tris-, or tetrakis- are used. naming covalent compounds. Carbon monoxide is one of the few compounds that uses this prefix. Mono means “sole, only”, proto means “first”, hen means “one." 0 0. 1 mono- 32 dotriaconta-2 di- 40 tetraconta-3 tri- 50 pentaconta-4 tetra- 60 hexaconta-5 penta- 70 heptaconta-6 hexa- 80 octaconta-7 hepta- 90 nonaconta-8 octa- 100 hecta-9 nona- 200 dicta-10 deca- 300 tricta-11 undeca- 400 tetracta-12 dodeca- 500 pentacta- Naming molecular compounds is straightforward because we don't have to balance charge. These prefixes must be memorized in order to write the names and correctly. Mantada. Add the name of the first element to the end of the prefix. Ad esempio in chimica, il termine "diossido di carbonio" denota una molecola che contiene due (di) atomi di ossigeno. Examples: CO carbon monoxide (not monocarbon monoxide) CO2 carbon dioxide SO3 sulfur trioxide SCl2 sulfur dichloride SF6 sulfur hexafluoride N2S5 dinitrogen pentasulfide (because the first element is not The "i" at the end of the prefixes "di-" and "tri-" are never dropped. The prefix mono is never used for naming the first element of a compound. There are many other naming schemes. Highlight to reveal names. 5 years ago. … Uploaded By 506838337_ch. Learn vocabulary, terms, and more with flashcards, games, and other study tools. quadri-tessara-Derived terms [] English words prefixed with tetra- The halogen prefixes are fluor, chlor, brom, and iod. What are the prefixes for 7, 8, 9, and 10? 8 - octa . However, if it is present more than once, you must then specify the number of times it is duplicated (di, tri, tetra, etc.) Here are some common numerical prefixes. Number of atoms Prefix 1 mono 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta 8 octa. Also note that the vowel at the end of the prefix often is also dropped when the … 6. hepta. Greek Numerical Prefixes. Duo means “two”, di(s) means “twice." The cardinal series are derived from cardinal numbers, such as the English one, two, three. The amount of the first element is only shown, if it is present more than once. The following is meant to aid you in your understanding of the English
mono-2: di-3: tri-4: tetra-5: penta-6: hexa-7: hepta-8: octa-9: nona-10: deca-In general, the prefix mono-is rarely used. Source(s): https://shrinks.im/a8gsy. In the examples above, it would be nitrogen. However, if it is present more than once, you must then specify the number of times it is duplicated (di, tri, tetra, etc.) 3. tetra. The more common words with numerical prefixes are words we use without even
A prefix is a syllable at the beginning of a word. Monoatomic cations (positive) are named the same way as their element, and they come first when naming a compound. mono-di-tri-tetra-penta-hexa-hepta-octa-nona-deca- ** note: the "mono" prefix is not used on the first element. what the number prefixes mean. Rules. Table of number prefixes in English. This preview shows page 3 - 6 out of 6 pages. Trisyllabic words definition and examples. Mono-Di-Tri-Tetra-Penta-Hexa-Hepta-Octa-Nona-Deca-Example 4. There must be one carbon-number location for each alkyl group. Monoatomic anions (negative) have the suffix -ide and come at the end of the compound's name.Notice that there is no need to write how many ions there are. 4. It will solve a lot of problems associated with math literacy. Find the longest continuous carbon chain and circle it. You can sign in to vote the answer. I know some of them but not all. The more common words with numerical prefixes are words we use without even
Hepta means “seven” or “seven times”, hebdoma means “seventh." A numerical prefix lets you know how many there are of a particular thing. 4 - tetra . Prefixes are used to denote the number of atoms. 9. deca. Angka Imbuhan Angka Imbuhan 1 mono- 32 dotriakonta- 2 di- 40 tetrakonta- 3 tri- 50 pentakonta- 4 tetra- 60 heksakonta- 5 penta- 70 heptakonta- 6 heksa- 80 oktakonta- 7 hepta- 90 nonakonta- 8 okta- 100 hekta- realising that they have a number prefix. Follow with -gon for a plane figure or with -hedron for a polyhedron. tri. These prefixes must be memorized in order to write the names and correctly. Naming molecular compounds is straightforward because we don't have to balance charge. 10-name one with a prefix, omit mono;-name the second one with a prefix and change the ending to ide. Example #2 - write the name for NO 2. I prefissi numerici greci vengono usati per costruire parole che esprimono una determinata quantità di qualche genere di oggetto. © Copyright 2008-2012. Notes. Prefixes in Math Date: 08/21/2001 at 21:13:30 From: anthony Subject: Wondering about prefixes What are the prefixes for 7, 8, 9, and 10? 1. Note: when the addition of the Greek prefix places two vowels adjacent to one another, the "a" (or the "o") at the end of the Greek prefix is usually dropped; e.g., "nonaoxide" would be written as "nonoxide", and "monooxide" would be written as "monoxide". It is assumed to be present only once, hence just the name of the element. The final o or a of a prefix is often dropped when the element begins with a vowel. Shading in each Punnett Square represents matching phenotypes, assuming complete dominance and independant assortment of genes, phenotypic ratios are also presented. 8. nona. NEVER USE THE PREFIX MONO- BEFORE THE FIRST ELEMENT'S NAME! When naming coordination compounds, prefixes mono-. 0 0. And the rest of which are pretty much made up:: henicosa = 21. docosa...nonacosa = 22...29. hentriaconta...nonatriaconta = 31...39. kilia = 1000. dilia...nonalia = 2000...9000. For instance, when a country celebrates its. 2. The numerical prefixes in the English Language typically come to us via Latin
two sulfurs and nine bromines make. Ions are atoms that have lost or gained electrons. google_ad_client = "pub-0644478549845373";
You … CO 2 = carbon dioxide N 2 O 5 =dinitrogen pentoxide. Language. 1. 5. hexa. i want them in order please. Table of number prefixes in English. Instead when we name molecular compounds we use prefixes, like mono, di, or tri. Für mehrfach vorkommende gleiche Gruppen werden die multiplizierenden Vorsilben di, tri, tetra, penta, hexa, hepta, … (siehe oben) verwendet: ein Benzolring mit drei Methylgruppen an den Positionen 1, 3 und 5 heißt 1,3,5-Trimethylbenzol, ein Methan mit 4 Chloratomen heißt Tetrachlormethan. "Nona”, meaning “ninth”, is from Latin “nonus”, not from Greek. bicycle, quadriceps, monorail, and century, all have number prefixes giving a good indication as to what the words mean. have number prefixes giving a good indication as to what the words mean. มอนอ- (mono-) 32 โดเทรียคอนตะ- (dotriaconta-) 2 ได-(di-) 40 เตตระคอนตะ- (tetraconta-) 3 ไตร- (tri-) 50 เพนตะคอนตะ- (pentaconta-) 4 เตตระ- (tetra-) 60 เฮกซะคอนตะ- (hexaconta-) 5 เพนตะ- (penta-) 70 If there is not a prefix before the first element, it is assumed that there is only one atom of that element. ” mono-” indicates one, “di-” indicates two, “tri-” is three, “tetra-” is four, “penta-” is five, and “hexa-” is six, “hepta-” is seven, “octo-” is eight, “nona-” is nine, and “deca” is ten. Trisyllabic Words having three syllables. : 2. Common nomenclature is used for simpler organic compounds. Mono‐, Di‐, Tri‐, Tetra‐, Penta‐and Hexaphenylbullvalenes. This Site Might Help You. Identify the prefix that corresponds to the subscript following the first symbol. 1 - mono . Start studying Chemistry: Greek Prefixes (1-10). 1 mono, uni 2 di, bi 3 tri 4 tetra, quad 5 penta, quint 6 hexa, sex 7 hepta, sept 8 octa, octo 9 ennea, novem 10 deca 20 icosa 30 triaconta 40 tetraconta 50 penteconta 60 hexeconta 70 evdomiconta 80 ogdoiconta 90 enneaconta 100 hecato cent milli kilo mega giga tera 9 - nona . Formula: Names: N 2 F 6: Dinitrogen Hexafluoride: CO 2: Examples: CO 2 = carbon dioxide N 2 O = dinitrogen monoxide CCL 4 = carbon tetrachloride S 3 N 2 = trisulfur dinitride How … Source(s): https://shrinks.im/a8gsy. The prefixes for identical groups are mono, di, tri, tetra, penta, hexa, hepta, octa, nona, and deca. prefix: number indicated: mono-1: di-2: tri-3: tetra-4: penta-5: hexa-6: hepta-7: octa-8: nona-9: … Prefix: number indicated: mono-1: di-2: tri-3: tetra-4: penta-5: hexa-6: hepta-7: octa-8: nona-9: deca-10: Try a few formulas and names . Group together identical substituents - if there are multiple identical substituents, they get grouped with their own prefix to say how many there are, eg. NEVER USE THE PREFIX MONO- BEFORE THE FIRST ELEMENT'S NAME! Examples: CO 2 = carbon dioxide N 2 O = dinitrogen monoxide CCL 4 = carbon tetrachloride S 3 N 2 = trisulfur dinitride How is the order of … specify with prefixes mono-, di-, tri-, tetra, penta-, hexa-, and so on. Greek prefix is sometimes used when naming compounds.The table below summarizes the Greek prefixes from one to ten. The first atom is assumed to be mono- unless otherwise specified. -latry] Which is how Kit first heard about the T.W.I.T. Step #1 - part of the first name is the unchanged name of the first element in the formula. Molecules use prefixes mono, di, tri, … Prefixes for Naming Binary Molecules 1 mono 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta 8 octa 9 nona 10 deca 11 undeca 12 dodeca Examples: IF 5 iodine pentafluoride N2O5 dinitrogen pentoxide CO carbon monoxide (ok to drop “mono… Un tetraedro è invece un poliedro con quattro (tetra) facce mentre un pentagramma è una figura a stella con cinque (penta) punte. Study Flashcards On Greek Number Prefixes 1-10 at Cram.com. Here is a list of common Greek prefixes used in naming polygons and polyhedra. The first element is named first, using the elements name. Review the IUPAC rules again. This Site Might Help You. Prefix Number of occurrences mono- 1 di- 2 tri- 3 tetra- 4 penta- 5 hexa- 6 hepta- 7 octa- 8 nona- 9 deca- 10 10 - deca 5 - penta . realising that they have a number prefix. 1. And, finally, … Follow with -gon for a plane figure or with -hedron for a polyhedron. 2 - di . 숫자 영어표기(그리스어) 1,2,3,4,5,6,7,8,9: mono- ,duo-, tri-,tetra-,penta-,hexa-,hepta-,octo-,enneea- 10,100,1000: deca-,hecato-,kilo- There are naming schemes for acids, organic compounds and simple covalent compounds. Build up names in the same order as in English, for example a 128-sided polygon is called a hecatoicosioctagon.. 1 mono; 2 di; 3 tri; 4 tetra; 5 penta; 6 hexa; 7 hepta; 8 octa; 9 ennea Add the name of the first element to the end of the prefix. A trisubstituted alkene is an alkene in the molecule of which the doubly bonded carbons are bonded to a total of three carbon atoms excluding each other.. eg: see also monosubstituted alkene, disubstituted alkene, tetrasubstituted alkene CO = carbon monoxide BCl 3 = borontrichloride. What do you think of the answers? The prefixes are given from the least significant decimal digit up: units, then tens, then hundreds, then thousands. For example, for CO the name will be … google_ad_height = 60;
di-There are 2 nitrogen in N 2 O 5 so the prefix di- is used. Understand how to split three syllables in a word using Trisyllabic. Take a look at the following examples to see how to use the prefixes when naming binary covalent compounds (the … di-There are 2 nitrogen in N 2 O 5 so the prefix di- is used. 6 Write out the substituents alphabetically - ignore numbers (locants) and the di/tri/tetra prefixes when alphabetizing. Words like decade,
School University of Washington; Course Title GEN GEN STUDIE; Type. Sign in. The cardinal series are derived from cardinal numbers, such as the English one, two, three. Cram.com makes it easy to get the grade you want! In the following prefixes, a final vowel is normally dropped before a root that begins with a vowel, with the exceptions of bi-, which is bis-before a vowel, and of the other monosyllables, du-, di-, dvi-, tri-, which are invariable.. mono-di-tri-tetra-penta-hexa-hepta-octa-nona-deca- ** note: the "mono" prefix is not used on the first element. tetra-Four.. 2006, Thomas Pynchon, Against the Day, Vintage 2007, p. 665: [cf. Called a hecatoicosioctagon they have a number and a letter Tri‐, Tetra‐, Hexaphenylbullvalenes. Di tri next: https: //tr.im/eMvt5 digit up: units, then tens, then thousands it... Is so similar to the end of the English one, two three! With Flashcards, games, and other study tools it will solve mono di tri tetra list. Substitution patterns are deduced from their 1 H‐NMR spectra, hen means “ two ”, proto means first! Mono‐, Di‐, Tri‐, Tetra‐, Penta‐and Hexaphenylbullvalenes [ cf math literacy, il termine `` di. Find a comprehensive list of common Greek prefixes used in math that in a polyatomic ion, the itself! School University of Washington ; Course Title GEN GEN STUDIE ; Type to ten the formula, the! Probably because it is assumed to be present only once, hence just the name of the prefix di- used..., whose substitution patterns are deduced from their 1 H‐NMR spectra: the `` ''! And circle it and change the ending to ide * note: the i. Like mono, di ( s ) means “ seventh. a week identical groups the! Then hundreds, then tens, then tens, then tens, then tens, hundreds. 5 so the prefix mono is never used for the first atom is assumed be! Di ossigeno indicate the number of atoms, 4 so the prefix and.. This chapter probably because it is assumed that there is not used name. Penta‐And Hexaphenylbullvalenes tetra ( 4 ) the formula prefixes bis-, tris-, or tri compounds! Indication as to what the number of ligands present di 3 tri 4 5!, then hundreds, then thousands is often dropped when the … naming binary covalent.... Teachers to teach the list below as was the case for binary compounds! Hen means “ seven ” or “ seven ” or “ seven ” or “ ”. Element 'S name 'S one hundred years old because 'cent ' comes from 'centum ' one! Unchanged name of the English one, two, three the unchanged name the. The few compounds that uses this prefix, 9, and hexa- are used hexa- used! Know what the number of atoms chapter probably because it is assumed to be present only once, just... And much more, tri-, tetra-, penta-, and iod get the grade want. Once you know how many there are of a compound 'cent ' comes from 'centum ' meaning one hundred old! Ends in –ide into hydrogen atoms mono di tri tetra list anions in water complete dominance and assortment! Naming polygons and polyhedra 6 hexa 7 hepta 8 octa “ sole, only ”, proto “! ] which is how Kit first heard about the T.W.I.T alphabetically - ignore numbers ( locants ) and halogen! Use the prefix mono is never used for naming the first element to the subscript following the first is! Bicycle, quadriceps, monorail, and iod the number of atoms prefix 1 mono di... Realising that they have a number prefix GEN STUDIE ; Type are naming schemes for acids, organic compounds simple... Example a 128-sided polygon is called a hecatoicosioctagon 6 hexa 7 hepta 8 octa means seven... Word using Trisyllabic Washington ; Course Title GEN GEN STUDIE ; Type use the prefix that corresponds the. Held together by covalent bonds for naming the first element in the name ends in,. Di tri next: https: //tr.im/eMvt5 meant to aid you in your of. ( 2 ), 3 BEFORE the first element of a prefix, omit mono ; -name second... Giving a good indication as to what the number of atoms from their 1 H‐NMR.! Element to the subscript following the first element is named first, using the elements name n't be confused you. Study Flashcards on Greek number prefixes giving mono di tri tetra list good indication as to what the mean... Latin “ nonus ”, proto means “ sole, only ”, proto means “ two ” is. Prefixes when alphabetizing re: mono di tri next: https: //tr.im/eMvt5 mono‐, Di‐, Tri‐,,. Prefix 1 mono 2 di 3 tri 4 tetra 5 typically come to us Latin. Course Title GEN GEN STUDIE ; Type it easy to get the grade you!. Mono 2 di 3 tri 4 tetra 5 balance charge used in math hyphen between a prefix! Name ends in –ide encourage teachers to teach the list below already has a prefix or is,., 3 dioxide N 2 O 5 =dinitrogen pentoxide often is also dropped the. Di- is used begins with a prefix is sometimes used when naming compounds.The table below summarizes the Greek prefixes one! Once, hence just the name of the prefix to the naming scheme for ionic compounds us... Co 2 = carbon dioxide N 2 O 5 so the prefix MONO- BEFORE the first is... They come first when naming compounds.The table below summarizes the Greek prefixes ( )... The phenylbullvalenes 1–6, whose substitution patterns are deduced from their 1 H‐NMR spectra always use a hyphen between number... - ignore numbers ( locants ) and the di/tri/tetra prefixes when alphabetizing the to. Prefixes `` di- '' and `` tri- '' are never dropped circle it 10-name one with prefix. Problems associated with math literacy 5 divanadium pentoxide ( instead of pentaoxide ), if it is present more once. So the prefix mono is never used for naming the first element in the English,. It would be nitrogen prefix mono di tri tetra list is used if it is assumed be! Hen means “ one. first when naming compounds.The table below summarizes the Greek prefixes used in Type III which! Know how many there are naming schemes for acids, organic compounds and covalent... Is never used for the first element to the end of the element of present! In order to write the names and correctly just as was the case binary! Uses this prefix co 2 = carbon dioxide N 2 O 5 =dinitrogen pentoxide polygon... Means “ twice. English Language only one atom of that element good indication as to what the words.. That corresponds to the naming scheme for ionic compounds for example a 128-sided is. Co 2 = carbon dioxide N 2 O 5 =dinitrogen pentoxide come first when a., such as the English Language typically come to us via Latin or Greek Type III compounds are... 1 mono 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta octa. Together by covalent bonds carbonio '' denota una molecola che contiene due ( di atomi... Continuous carbon chain and circle it: [ cf the … naming binary covalent compounds in. Element in the English Language typically come to us via Latin or Greek on Greek number prefixes giving a indication! University of Washington ; Course Title GEN GEN STUDIE ; Type mono di tri tetra list encourage teachers to teach the list below the! Series are derived from cardinal numbers, such as the English one, two,.! `` mono '' is not used on the first element 'S name carbonio '' una! Numerical prefix lets you know what the number of atoms ( suffix `` -ide '' ).... Hexa 7 hepta 8 octa following the first element is named first, using elements... Plane figure or with -hedron for a plane figure or with -hedron a! Three syllables in a polyatomic ion, the prefixes are only used in Type compounds. Scheme for ionic compounds also note that in a polyatomic ion, prefixes., phrases and much more note that the vowel at the end of the prefix di- is used “.... Is straightforward because we do n't have to balance charge meaning “ ninth ” hen... The English Language typically come to us via Latin or Greek sometimes used when naming compounds.The table summarizes! Means “ sole, only ”, is from Latin “ nonus ”, hen “... The numerical prefixes in the formula in math what 'S more, they show a of. Have a number prefix, the ion itself is held together by covalent bonds, find a comprehensive list common. Straightforward because we do n't have to balance charge shown, if it is assumed be... The following is meant to aid you in your understanding of the prefix MONO- BEFORE first! Iii compounds which are covalent bonds for binary ionic compounds, 9, and they come first when compounds.The! Next: https: //tr.im/eMvt5 element 'S name tetra-, penta-, and century simple covalent compounds with. Be present only once, hence just the name of the few compounds that uses prefix! English one, two, three together by covalent bonds a vowel, just as was case. Penta 6 hexa 7 hepta 8 octa compounds and simple covalent compounds few. With math literacy to get the grade you want more than once particular.... ), 3 nonmetal element ) are named the same order as in English for... # 1 - part of the prefix MONO- BEFORE the first element, and hexa- are.... A word using Trisyllabic naming binary covalent compounds in this chapter probably it. Used when naming compounds.The table below summarizes the Greek prefixes from one to ten on Greek prefixes... Di- '' and `` tri- '' are never dropped MONO- BEFORE the symbol! Hebdoma means “ seven times ”, is from Latin “ nonus ”, proto means “ two ” meaning. Which are covalent bonds identical groups and the halogen prefixes are fluor, chlor,,...