periodic table grade 9

identify the group and period Ca belongs

• group 1 period 2

• group 2 period 4

• group 4 period 2

• period 2 group 1

noble gas having electronic configuration of 2,8,8

• krypton

• neon

• helium

• Argon

non metallic element in period 3 other than chlorine and sulphur

• phosphorous

• Aluminium

non metal in period 2 that is tetravalent

• sulphur

• nitrogen

• carbon

• silicon

metallic character across the period

• increases

• decreases

down the group, the number of shells of the elements

• increases

• decreases

Au is the symbol for which element

group 1 elements are called

the most reactive halogen is

name a pair of bridge elements