Question

31. Two elements and belong to 4 period of the modern periode here in
sroup I and group 2 respectively. Compare the following characteristics in the form
(1) The number of electrons in their atoms
2) The size of their atoms
3) Their metallie character
4) Their tendencies to lose electrons.
5) The formula of their oxides.
6)The formula of their chlorides.​

Answer 1

Explanation:

Two elements 'A' and 'B' belong to the 3rd period of Modern periodic table and are in group 2 and 13 respectively. Compare their following characteristics in tabular form:

(a) Number of electrons in their atoms

(b) Size of their atoms

(c) Their tendencies to lose electrons

(d) The formula of their oxides

(e) Their metallic character

(f) The formula of their chlorides