Question

Two elements P and Q belong to the 3 period of the modern periodic table and are in
Group-1 and Group-2 respectively. Compare their following characteristics in tabular
form
i. The number of electrons in their atom
11. The size of their atoms
iii. The metallic characters
iv. Their tendencies to loose electrons
V. The formula of their oxides
vi. The formula of their halides​

Answer 1

Explanation:

Two elements P and Q belong to the 3 period of the modern periodic table and are in

Group-1 and Group-2 respectively. Compare their following characteristics in tabular

form

i. The number of electrons in their atom

11. The size of their atoms

iii. The metallic characters

iv. Their tendencies to loose electrons

V. The formula of their oxides

vi. The formula of their halides

the great answer is below

Group 1 Group 2

a) One electron in the valence shell Two electrons in the valence shell

b) Larger atomic size compared to Group 2 Smaller atomic size compared to Group 1

c) More metallic in nature Comparatively less metallic

d) Highly electropositive, readily loses electron Comparatively less electropositive

e) Oxide formula: X

2

O Oxide formula: XO

f) Chloride formula: XCl Chloride formula: XCl

2