Question

Which of the following elements forms
predominantly covalent compounds as
compared to other elements which form
ionic compounds?
a) Be
b) Mg
c) Ca
d) Sr​

Answer 1

Answer:

Covalent character depends upon the atomic radii. Smaller the atomic radii, more the covalent character i.e. the covalent character is inversely proportional to atomic radii & among the given options Be has the smallest atomic radii, hence the maximum covalent character.

Answer 2

$\bold{\boxed{\huge{\bf{ANSWER}}}}$

Covalent character depends upon the atomic radii. Smaller the atomic radii, more the covalent character i.e. the covalent character is inversely proportional to atomic radii & among the given options a)Be has the smallest atomic radii, hence the maximum covalent character.

$\bold{\boxed{\huge{\bf{(a) Be}}}}$