1. Naming Compounds and Writing Formulas
Chapter 6 Section 3 Pg

2. Describing Ionic Compounds
The name of an _____ compound must distinguish the compound from other ionic compounds containing the same elements. The _______ of an ionic compound describes the _____ of the ions in the compound.

3. Describing Ionic Compounds
Binary Ionic Compounds
A compound made from only __ elements is a binary compound
Bi- means 2
The names have a predictable patter:
The name of the ______ (+) followed by the name of the anion (-)
Name for cation is the name of the _____ without any change
Name for the _____ uses part of the name of the nonmetal with the suffix –ide

4. Describing Ionic Compounds
Binary Ionic Compounds
Common Anions
Element Name
Ion Name
Ion Symbol
Ion Charge
Fluorine
Fluoride F- 1-
Chlorine
Chloride
Cl-
Bromine
Bromide
Br -
Iodine
Iodide I-
Oxygen
Oxide
O2- 2-
Sulfur
Sulfide
S2-
Nitrogen
Nitride
N3- 3-
Phosphorus
Phosphide
P3-

5. Describing Ionic Compounds
Metals with Multiple Ions
______ metals, alkaline earth metals, and aluminum form ions with ________ charges equal to the group number
Potassium ion is K+
Aluminum ion is Al3+
Many _________ metals form more than one type of ion
When a metal forms more than one ion, the name of the ion contains a _____ numeral to indicate the charge on the ion

6. Describing Ionic Compounds
Metals with Multiple Ions
Some Metal Cations
Ion Name
Ion Symbol
Copper (I)
Cu+
Chromium(II)
Cr2+
Copper(II)
Cu2+
Chromium(III)
Cr3+
Iron(I)
Fe+
Titanium(II)
Ti2+
Iron(III)
Fe3+
Titanium(III)
Ti3+
Lead(II)
Pb2+
Titanium(IV)
Ti4+
Lead(V)
Pb5+
Mercury(II)
Hg2+

7. Describing Ionic Compounds
Polyatomic Ions
A __________ bonded group of atoms that has a positive or negative charge and acts as a unit (one)
Poly- means “____”
most simple polyatomic ions are anions

8. Describing Ionic Compounds
Polyatomic Ions
1 Nitrogen and 4 Hydrogen atoms
Called an ________ ion
Joined by covalent bonds
________ charge because: N has 7 protons, each H atom has 1 proton= 11 total; but the group only has 10 electrons to _______ the charge on the protons – 8 v.e. and N 2 inner electrons

9. Describing Ionic Compounds
Polyatomic Ions
Some Polyatomic Ions
Name
Formula
Ammonium
NH4+
Acetate
C2H3O2-
Hydroxide
OH-
Peroxide
O2-
Nitrate
NO3-
Permanganate
MnO4-
Sulfate
SO42-
Hydrogen sulfate
HSO4-
Carbonate
CO32-
Hydrogen carbonate
HCO3-
Phosphate
PO43-
Hydrogen phosphate
HPO42-
Chromate
CrO42-
Dichromate
Cr2O72-
Silicate
SiO32-
Hypochlorite
OCl-

10. Describing Ionic Compounds
Writing Formulas for Ionic Compounds
IF you know the name of an _____ compound, you can write its formula
Place the symbol of the ______ first, followed by the symbol of the anion
Use subscripts to show the _____ of the ions in the compound, all compounds are neutral
Total charges on the cations and anions must add up to ____

11. Practice Writing Formulas for Ionic Compounds

12. Describing Molecular Compounds
The name and formula of a molecular compound ________ the type and number of atoms in a molecule of the compound
Naming Molecular Compounds
General rule: the most ________ element appears first in the name (farther left on table), if both elements are in the same group, the more metallic element is closer to the bottom of the _____
The name of the second element is changed to ___ in the suffix -ide

13. Describing Molecular Compounds
Prefixes for naming compounds
Number of Atoms
Prefix 1
Mono- 2
Di- 3
Tri- 4
Tetra- 5
Penta- 6
Hexa- 7
Hepta- 8
Octa- 9
Nona- 10
Deca-

14. Practice Naming Molecular Compounds

15. Describing Molecular Compounds
Writing Molecular Formulas
Write the _______ for the elements in the _____ the elements appear in the name
Prefixes indicate the ______ of atoms of each element in the molecule
Appear as subscripts in formula
If there is no ______ for an element in the name, there is only one atom of that element in the ________

16. Practice Writing Molecular Formulas
Formula for diphosphorus tetrafluoride
Phosphorus- P, di=2
Fluoride- F, tetra=4
______