Ions

Question 1

Poly atomic cations

Answer 1

1. Several atoms bodes together
2. Cations - name of original nitrogen-based neutral molecule ends in “-monium” eg. NH+4 from ammonia NH3 is named ammonium ion

Question 2

Mono atomic (single element) anions (non metals)

Answer 2

1name of element ends in “ide” such as Cl-, from chlorine = chloride ion

O2- from oxygen is oxide ion

S2- from Sulfur is sulfide ion

Question 3

Poly atomic anions of elements joined with oxygen

Answer 3

Name of elements ends in “ate”

Question 4

List poly atomic anions with oxygen

Answer 4

1. CO2-3 , carbonate ion
2. NO-3 . Nitrate ion
3. NO-2: nitrITE ion
4. SO2-4 sulfate ion
5. SO2-3 SulFITE ion
6. PO3-4 phosphate ion

Question 5

Metal cations

Answer 5

1. Same name as metal such as Na+

2. If metal cation can have more than 1 charge, charge indicated is stated eg. Fe2+= iron (II) ion