Question

From the alkaline earth metal group name the following:

metal having the smallest size

Answer 1

Alkaline earth metals are the elements that belong to the second group in the periodic table.

The elements in the second group are: Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), Radium (Ra)

The size of the atom depends on certain factors like:

1. The number of shells present in the atom
2. The number of electrons present in the atom

Periodic trend:

The size of the atom increases from top to bottom along with a group as the number of shells increases. Hence, the atom that is present at the top is the smallest and the one present at the bottom is the largest in size.

The smallest atom in group II is Beryllium.