Polyatomic Atoms

Question 1

NH4+

Answer 1

Ammonium

Question 2

OH-

Answer 2

Hydroxide

Question 3

O2 -2

Peri - Oxygen

Answer 3

Peroxide

Question 4

C2H3O2 -

Answer 4

Acetate

Question 5

C2O4 -2

Answer 5

Oxalate

Question 6

CN-

Answer 6

Cyanide

Question 7

SCN -1

Answer 7

Thiocyanate

Question 8

CO3 -2

Answer 8

Carbonate

Question 9

NO2 -

Answer 9

Nitrite

Question 10

NO3 -

Answer 10

Nitrate

Question 11

ClO2 -

Answer 11

Chlorite

Question 12

ClO3 -1

Answer 12

Chlorate

Question 13

SO3 -2

Answer 13

Sulfite

Question 14

SO4 -2

Answer 14

Sulfate

Question 15

PO4 -3

Answer 15

Phosphate

Question 16

CrO4 -2

Answer 16

Chromate

Question 17

Cr2O7 -2

Answer 17

Dichromate

Question 18

MnO4 -1

Answer 18

Permanganate

Question 19

Pnemonic for all of the ates (step one)

Answer 19

Nick the Camel Picks a Clam Supper then Orbits Phoenix Perms and Dachshund Ass.

Nitrate
Carbonate
Perchlorate
Chlorate
Sulfate
Oxalate
Phosphate
Permanganate
Dichromate
Acetate

Question 20

ClO4 -

Answer 20

Perchlorate

Question 21

These polyatomic ions don’t have oxygen - a CAT breathes nitrogen

Answer 21

ammonium NH4+
thocyanate SCN-
cyanide CN -

Question 22

The difference between an ITE and an ATE is

Answer 22

one less oxygen atom, e.g. Nitrate is NO3- and Nitrite is NO2-

Question 23

The ITES to memorize are

Answer 23

Chlorite, Nitrite, Sulfite

Question 24

The Oxygen IDES are

Answer 24

Hydroxide
Peroxide

Question 25

Pnemonic for all of the ates (step two)

Answer 25

Nice Children Clean Clothes So Carefully 2 Prevent Manganese Crying 2 C2H302

Question 26

Naming ionic compounds

Answer 26

1. Cation goes first
2. Anion goes second
   e.g. sodium sulfate is (Na+) and sulfate (SO4-2)
   e.g. ammonium nitrate is (NH +4) and nitrate (NO3-)

Question 27

Naming elemental anions

Answer 27

1. remove the element ending
2. add “ide”
   e.g. fluorine F becomes F-1 fluor -ide

Question 28

Naming elemental cations

Answer 28

The cation name is the same as the element
e.g. silver AG is still silver AG+

Question 29

Naming covalent molecules

Answer 29

1. Use elelment closest to the center of the periodic table
2. then end in ide
3. if the first element only has one atom - don’t use mono

e.g. CO2 - carbon dioxide (no mono here)
e.g. N2O - dihydrogen monixide

Question 30

Chlorine Oxygen Ions

Answer 30

chlorite ClO2-

chlorate ClO3-

perchlorate ClO4-

Question 31

Chromium Oxygen Ions

Answer 31

chromate CrO4 -2

dichromate Cr2O7 -2