Question

how to check that electro negativity of an atom is max. and min.​

Answer 1

The higher the attraction for an electron, the higher the electronegativity.

Electronegativity increases as you move left to right, and down to up on the periodic table (fluorine is the most electronegative element on the periodic table).

If the difference in electronegativity is:

<

0.5

→

it's a non-polar bond (electrons equally shared)

0.5

−

1.7

→

it's a polar covalent bond (2 nonmetals, electrons unequally shared)

>

1.7

→

it's ionic (metal and nonmental)