3.2.1.3 Physical properties of Period 3 elements

Question 1

What is the order of factors that influence the atomic radius?

Answer 1

1.Electrons shells/ shielding effect
2. Nuclear charge

Question 2

Describe the trend in atomic radius across Period 3

Answer 2

Same no of electron shells and similar shielding effect
Nuclear charge increases
so attraction between nucleus and outer-shell electrons increases, so atomic radius decreases

Question 3

FINIHS