Question

In alkaline earth metals ,the last electron
enters.....orbital of the atom.
ns
np
nd
nf
​

Answer 1

Explanation:

ns subshell.........

......

Answer 2

The alkaline earth metals are called so as they are found in the earth's crust and they form an alkaline solution when mixed with water.

• In alkaline earth metals, the last electron enters the ns orbital of the atom.
• The alkaline earth metals have +2 valency.
• The alkaline earth metals donate these two electrons to form cations.
• Some of the alkaline earth metals are Magnesium, Calcium, Beryllium, etc.

Hence, in alkaline earth metals, the last electron enters the ns orbital of the atom.