Chemistry Need to Know

Helium (M or D)

Monatomic

Neon (M or D)

Monatomic

Argon (M or D)

Monatomic

Krypton (M or D)

Monatomic

Xenon (M or D)

Monatomic

Radon (M or D)

Monatomic

Hydrogen (M or D)

Diatomic

Nitrogen (M or D)

Diatomic

Oxygen (M or D)

Diatomic

Fluorine (M or D)

Diatomic

Chlorine (M or D)

Diatomic

Bromine (M or D)

Diatomic

Iodine (M or D)

Diatomic

mono-

1

di-

2

tri-

3

tetra-

4

penta-

5

hexa-

6

hepta-

7

octa-

8

nona-

9

deca-

10

Alkali Metals (Group 1)

Monatomic Ion Charge: +1

Alkaline Earth Metals (Group 2)

Monatomic Ion Charge: +2

Transition Metals or ‘D-Block’ (Groups 3-12)

Monatomic Ion Charge: Varies except for Ag⁺, Zn²⁺, and Cd²⁺, which have these indicated charges.

Group 13

Monatomic Ion Charge: +3

Group 14

Monatomic Ion Charge: ±4

Group 15

Monatomic Ion Charge: -3

Group 16

Monatomic Ion Charge: -2

Halogens (Group 17)

Monatomic Ion Charge: -1

Noble Gases (Group 18)

Monatomic Ion Charge: Not Applicable