Question

An element Barium has atomic numbet 56. Look up its position in the periodic table and answer the following questions.

(i) Is it metal or non-metal ?

Answer 1

The element $Ba\left(56\right)$ belongs to group 2 which is known as alkaline earth metal.

• $Ba$ being a group 2 element has 2 valence electrons.
• It readily loses its 2 valence electrons and forms a positive ion to gain stability.$Ba\to B{a}^{2+}+2e^{-}$
• Thus, $Ba$ is a metal.