1. I have the worst cold EVER!!!
Reading:
Chapter 5, sections 5, 6, 7
Mastering Chemistry
Nomenclature lists 1, 2, 3,4
Quiz Friday
Tutoring

2. Classification of Ions
Below is a flow chart for the classification of ions.

3. Monoatomic Cations
Metal atoms can lose valence electrons and become positively charged cations.
Cations are named for the parent atom followed by the word “ion.”
Na+ is named “sodium ion”
Al3+ is named “aluminum ion”

4. Metals That Form Multiple Ions
If a metal can form more than one cation, it is named for the parent, followed by the charge in Roman numerals in parentheses, followed by the word “ion.”
Fe2+ is the iron(II) ion
Fe3+ is the iron(III) ion

5. Monoatomic Anions
Nonmetals can gain valence electrons and become negatively charged anions.
Monoatomic anions are named by dropping the end of the element name and adding the suffix –ide.
Br- is the bromide ion
O2- is the oxide ion
N3- is the nitride ion

6. Did you get it? Element Valence e- Ion charge Ion name Noble gas
iodine 7 -1
iodide
xenon
aluminum 3 +3
aluminum ion
neon
phosphorus 5 -3
phosphide
argon
barium 2 +2
barium ion
xenon

7. Summary of Ions (the letters)
Monatomic ions
Some charges can be predicted based on group number 2+ Be

8. Summary of Ions (the letters)
Monatomic ions
Some charges can be predicted based on group number
Cation name is the same as element name with ion added
element: zinc (Zn) ion: zinc ion (Zn2+)
element: cesium (Cs) ion: cesium ion (Cs+)
Anion name changes ending of element name to ide
element: nitrogen (N) ion: nitride (N3-)
element: iodine (I) ion: iodide (I-)

9. Summary of Ions (the letters)
Poly
atomic
ion
Poly: more than one or many
atomic: atoms
ion: a positively or negatively charged particle
Almost always anions (two exceptions)
ammonium -- NH4+
mercury (I) -- Hg22+

10. Summary of Ions (the letters)
Variable Oxidation State metals
Charge can NOT be predicted based on periodic table
(ALMOST)
ANYTHING IN HERE CAN BE A VOS

11. Summary of Ions (the letters)
Variable Oxidation State metals
Charge can NOT be predicted based on periodic table
Can assume multiple ion charges
non VOS metal – potassium ion = K+
VOS metal – lead ion = Pb2+ or Pb4+
The charge of VOS metals MUST be indicated in the name with the use of roman numerals
Pb2+ = lead (II) ion Pb4+ = lead (IV) ion

12. Summary of Ions (the letters)
Practice: Give the name of the ION of each of these elements
rubidium
oxygen
cadmium
carbon
rubidium ion
oxide
cadmium ion
carbide
selenium
phosphorus
fluorine
lithium
selenide
phosphide
fluoride
lithium ion

13. Summary of Ions (the letters)
Practice: Give the name OR symbol for these ions:
tin (II) ion
S2-
Fe3+
copper (I) ion
Sn2+
sulfide
iron (III) ion
Cu+
Mg2+
bromide
Mn4+
Ag+
magnesium ion
Br-
manganese (IV) ion
silver ion

14. Na F

15. Na F

16. Na+ Na F F-
sodium ion
fluoride ion
fluoride ion