what ’ s in a name? when two people use different names for the same thing, misunderstood words...
TRANSCRIPT
What’s in a name?• When two people use different names for the
same thing, misunderstood words are apt to happen. The British and Americans often get confused.
Nomenclature• A System of Naming Compounds• Compounds are two or more atoms of
different elements bonded together.• Even though the gases O2, N2, F2, and Cl2 travel
in pairs, their names are simply oxygen, nitrogen, fluorine, and chlorine. – Diatomic molecules!! – HOFBRICL the clown or “the seven”
Diatomic Molecule• “di” means “two”• Diatomic molecule contains two atoms
– Ex. Fluorine molecule F2
mono- 1 hexa- 6 di- 2 hepta- 7 tri- 3 octa- 8 tetra- 4 nona- 9 penta- 5 deca- 10
In order to be effective in using prefixes to name compounds containing two non-metals, these prefixes must be committed to memory:
Example #1-Names to Formulas
Sulfur trioxide
S O1 3
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final FormulaIf no prefix, then 1 is implied
and not written
Example #2-Names to Formulas
dichlorine heptaoxide
Cl O2 7
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final Formula
Example #3-Names to Formulas
oxygen difluoride
O F1 2
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final FormulaIf no prefix, then 1 is
implied and not written
Example #4-Names to Formulas
dinitrogen tetraoxide
N O2 4
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final Formula
Example #5-Names to Formulas
phosphorus pentachloride
PCl5
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final FormulaIf no prefix, then 1 is implied
and not written
Example #6-Names to Formulas
dinitrogen monoxide
N O2
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final FormulaIf no prefix, then 1 is implied
and not written
Example #7-Names to Formulas
carbon monoxide
C O
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final FormulaIf no prefix, then 1 is implied
and not written
Example #8-Names to Formulas
sulfur hexafluoride
S F6
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final Formula
Example #10-Names to Formulas
dinitrogen trisulfide
N S2 3
I’m a Binary Compound
2. Write number of atoms
1. Write symbols of elements
Final Formula
Examples #1- Formulas to Names
CCl4
carbon
mono
tetra
I’m a Binary Compound
2. Write number of atoms
1. Write names of elements
Final Name
chlorineideIf first prefix is mono, it is implied and
not written
Examples #2- Formulas to Names
XeF3
xenonmono
tri
I’m a Binary Compound
2. Write number of atoms
1. Write names of elements
Final Name
fluorideIf first prefix is mono, it is implied and
not written
Examples #4- Formulas to Names
AsI3
arsenic
mono
tri
I’m a Binary Compound
2. Write number of atoms
1. Write names of elements
Final Name
iodideIf first prefix is mono, it is implied and
not written
Examples #6- Formulas to Names
IF5
iodine penta
I’m a Binary Compound
2. Write number of atoms
1. Write names of elements
Final Name
fluoride
Examples #8- Formulas to Names
N2S5
nitrogen
di penta
I’m a Binary Compound
2. Write number of atoms
1. Write names of elements
Final Name
sulfide
Examples #9- Formulas to Names
SiCl4
silicon
tetra
I’m a Binary Compound
2. Write number of atoms
1. Write names of elements
Final Name
chloride
Practice Problem #1ClF3
Choose the correct name for the compound
1. carbon iodine trifluoride
2. chlorine trifluorine
3. chlorine trifluoride
4. chlorine tetrafluoride
5. none of the above
next problemPrefixesElement List
Practice Problem #2arsenic
pentabromide
Choose the correct formula for the compound
1. AsBr5
2. ArBr5
3. AsBr7
4. As5Br
5. none of the above
next problemPrefixesElement List
Practice Problem #3N2O3
Choose the correct name for the compound
1. nitrogen trioxide
2. dinitride trioxide
3. dinitrogen trioxygen
4. dinitrogen trioxide
5. none of the above
next problemPrefixes
Practice Problem #6dichlorine monoxide
Choose the correct formula for the compound
1. ClO
2. Cl2O
3. ClO2
4. Cl2O2
5. none of the above
next problemPrefixes
Practice Problem #8Tetraphosphorus
decaoxide
Choose the correct formula for the compound
1. P4O10
2. P6O10
3. 4PO10
4. P2O5
5. none of the above
next problemPrefixes
Practice Problem #11NO
Choose the correct name for the compound
1. mononitrogen monoxide
2. nitrogen monoxygen
3. mononitrogen oxide
4. nitride monoxide
5. none of the above
next problem
This is nitrogen monoxide
Practice Problem #16silicon tetrabromide
Choose the correct formula for the compound
1. SBr4
2. ScBr4
3. SiB4
4. SiBr6
5. none of the above
next problemPrefixesElement List
The correct formula is SiBr4
Practice Problem #17S4N4
Choose the correct name for the compound
1 tetrasulfur tetranitride
2. tetrasulfur nitride
3. trisulfur trinitride
4. tetrasulfur tetranitrogen
5. none of the above
next problemPrefixes
Practice Problem #19BF3
Choose the correct name for the compound
1. monoboron trifluoride
2. boron trifluorine
3. boron trifluoride
4. bromine trifluoride
5. none of the above
Element List
Practice Problem #20tetraphosphorus
decasulfide
Choose the correct formula for the compound
1. P6S9
2. P4S9
3. P4Si10
4. Ph4S10
5. none of the above
next problemPrefixesElement ListThe correct formula is P4S10
Si
As
Al
Ge
Sb
Po
B
Te
At
HH
dual properties
Element List1 Actinium Ac
2 Aluminum Al
4 Argon Ar
5 Arsenic As
6 Astatine At
7 Barium Ba
9 Beryllium Be
10 Bismuth Bi
12 Boron B
13 Bromine Br
14 Cadmium Cd
15 Calcium Ca
17 Carbon C
18 Cerium Ce
19 Cesium Cs
20 Chlorine Cl
21 Chromium Cr
22 Cobalt Co
23 Copper Cu
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24 Fluorine F• Francium Fr
24 Gallium Ga
• Germanium Ge
• Gold Au• Helium He• Hygrogen H• Indium In• Iodine I• Iridium Ir• Iron Fe• Krypton Kr
47 Lanthanum La
48 Lead Pb
49 Lithium Li
50 Magnesium Mg
51 Manganese Mn
52 Mercury Hg
53 Molybddenum Mo
54 Neon Ne
55 Nickel Ni
56 Niobium Nb
57 Nitrogen N
58 Osmium Os
59 Oxygen O
60 Palladium Pd
61 Phosphorus P
62 Platinum Pt
70 Plutonium Pu
71 Polonium Po
72 Potassium K
73 Radium Ra
74 Radon Rn
Prefixes
mono- 1 hexa- 6
di- 2 hepta- 7 tri- 3 octa- 8 tetra- 4 nona- 9 penta- 5 deca- 10
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