Periodic Table of the Elements

These are called the inner transition elements and they belong here

1

2 13 14 15 16 17

18

3 4 5 6 7 8 9 10 11 12

Vertical columns are called groups or families.

Elements are placed in columns by similar properties.

Horizontal rows are called periods

1234567

There are 7 periods

1A

2A 3A 4A 5A 6A 7A

8A

3B 4B 5B 6B 7B 8B 8B 8B 1B 2B

1

2 13 14 15 16 17

18

3 4 5 6 7 8 9 10 11 12

Metals Luster – shiny. Ductile – drawn into wires. Malleable – hammered

into sheets. Conductors of heat

and electricity.

Non-metals Dull Brittle Nonconductors

- insulators

Metalloids or Semimetals Properties of both Semiconductors

Group 1 are the alkali metals They have 1 valence electron in the outer orbital or energy shell

1

Group 2 are the alkaline earth metals They have 2 valence electrons

2

Transition metals Groups 3-12 their properties do

not fit in with those of any other family.

Group 13 is called the Boron family They have 3 valence electrons

13

Group 14 is called the Carbon Family They have 4 valence electrons

14

Group 15 is called the Nitrogen Family They have 5 valence electrons

15

Group 16 is called the Oxygen Family They 6 valence electrons

16

Group 17 is called the Halogens They have 7 valence electrons

17

Group 18 are the Noble Gases They have 8 valence electrons