Polyatomic Ions and Common Monatomic Ions

Question 1

Hydronium

Answer 1

H₃O⁺

Question 2

Ammonium

Answer 2

NH₄⁺

Question 3

Nitrate

Answer 3

NO₃^-

Question 4

Sulfate

Answer 4

SO₄^2-

Question 5

Hydroxide

Answer 5

OH^-

Question 6

Cyanide

Answer 6

CN^-

Question 7

Phosphate

Answer 7

PO₄^3-

Question 8

Carbonate

Answer 8

CO₃^2-

Question 9

Bicarbonate

Answer 9

HCO₃^-

Question 10

Acetate

Answer 10

CH₃COO^- or C₂H₃O₂^-

Question 11

Hydrogen ion

Answer 11

H⁺

^{Group 1A}

Question 12

Lithium ion

Answer 12

Li⁺

^{Group 1A}

Question 13

Sodium ion

Answer 13

Na⁺

^{Group 1A}

Question 14

Potassium ion

Answer 14

K⁺

^{Group 1A}

Question 15

Magnesium ion

Answer 15

Mg²⁺

^{Group 2A}

Question 16

Calcium ion

Answer 16

Ca²⁺

^{Group 2A}

Question 17

Aluminum ion

Answer 17

Al³⁺

^{Group 3A}

Question 18

Nitride ion

Answer 18

N^3-

^{Group 5A}

Question 19

Phosphide ion

Answer 19

P^3-

^{Group 5A}

Question 20

Oxide ion

Answer 20

O^2-

^{Group 6A}

Question 21

Sulfide ion

Answer 21

S^2-

^{Group 6A}

Question 22

Fluoride ion

Answer 22

F^-

^{Group 7A}

Question 23

Chloride ion

Answer 23

Cl^-

^{Group 7A}

Question 24

Bromide ion

Answer 24

Br^-

^{Group 7A}

Question 25

Iodide ion

Answer 25

I^-

^{Group 7A}

Question 26

Copper (I) ion (cuprous ion)

Answer 26

Cu⁺

^{Group 1B}

Question 27

Copper (II) ion (cupric ion)

Answer 27

Cu²⁺

^{Group 1B}

Question 28

Silver ion

Answer 28

Ag⁺

^{Group 1B}

Question 29

Zinc

Answer 29

Zn²⁺

^{Group 2B}

Question 30

Iron (II) ion (ferrous ion)

Answer 30

Fe²⁺

^{Group 8B}

Question 31

Iron (III) ion (ferric ion)

Answer 31

Fe³⁺

^{Group 8B}