Question

(i) Name the element which is a non-metal with valency three
(11) Write the chemical formula of oxide of an element E.
(ii)Which is the smallest element in the above table​

Answer 1

Answer:

i) Boron.

11) valency of element E should be given.

iii)pls provide the table mentioned in question.

Explanation:

i)[He] 2s^2 2p^1