Charges on simple and complex ions

Question 1

Give the formula for a sodium ion.

Answer 1

Na +

Question 2

Give the formula for a chloride ion

Answer 2

Cl -

Question 3

Give the formula for a magnesium ion

Answer 3

Mg 2+

Question 4

Give the formula for an oxygen ion

Answer 4

O 2-

Question 5

Give the formula for an aluminium ion

Answer 5

Al 3+

Question 6

Give the formula for a lithium ion

Answer 6

Li +

Question 7

Give the formula for a fluoride ion

Answer 7

F -

Question 8

Give the formula for a hydrogen ion

Answer 8

H +

Question 9

Give the formula for a bromide ion

Answer 9

Br -

Question 10

Give the formula for a calcium ion

Answer 10

Ca 2+

Question 11

Give the formula for a sulfide ion

Answer 11

S 2-

Question 12

Give the formula for a potassium ion

Answer 12

K +

Question 13

Give the formula for an iodide ion

Answer 13

I -

Question 14

Give the formula for a copper (II) ion

Answer 14

Cu 2+

Question 15

Give the formula for a dichromate ion

Answer 15

Cr2O7 2-

Question 16

Give the formula for an iron (III) ion

Answer 16

Fe 3+

Question 17

Give the formula for a silver ion

Answer 17

Ag +

Question 18

Give the formula for a hydrogen carbonate ion

Answer 18

HCO3 -

Question 19

Give the formula for an ammonium ion

Answer 19

NH4 +

Question 20

Give the formula for a hydroxide ion

Answer 20

OH -

Question 21

Give the formula for an iron (II) ion

Answer 21

Fe 2+

Question 22

Give the formula for a sulfate ion

Answer 22

SO4 2-

Question 23

Give the formula for a phosphate ion

Answer 23

PO4 3-

Question 24

Give the formula for a barium ion

Answer 24

Ba 2+

Question 25

Give the formula for a nitrate ion

Answer 25

NO3 -

Question 26

Give the formula for a manganate ion

Answer 26

MnO4 -

Question 27

Give the charge on a Zinc ion

Answer 27

Zn 2+

Question 28

Give the formula for a carbonate ion

Answer 28

CO3 2-

Question 29

Give the formula of a lead ion

Answer 29

Pb 2+