Question

Out of Be and F which has smaller size and why

Answer 1

Answer:

Be

Explanation:

Be or beryllium is smaller than F or flourine

Answer 2

Answer:

The answer is F-Flurine

Both Be and F belong to the second period;

and as we know form left to right in a period the nuclear charge increases as a result the electrons in the shells are highly attracted by the nucleus.And also flurine is the most electro-negative element in the periodic table!!

Explanation:

Hope you understood the reason...