Question

Sodium is a very reactive metal. Is the statement true or false?

• A. True
• B. False

Answer 1

The correct option is A True

Sodium metal:

• Sodium is an alkali metal that belongs to the periodic table's first group. These alkali metals have a single electron in their valence shells.
• Alkali metals have very large sizes, which minimizes the effective nuclear charge experienced by the valence electron, resulting in low ionization energies and high electropositivity.
• If metal is highly electropositive in nature and easily loses electrons in a reaction, it is considered to be reactive. Because sodium metal has low ionization energy, it rapidly loses an electron.
• When sodium combines vigorously with oxygen and water, it releases so much energy that it catches fire and bursts with popping sounds.$\underset{\mathrm{Sodium}}{2\mathrm{Na}\left(\mathrm{s}\right)}+\underset{\mathrm{Water}}{2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}\to \underset{\mathrm{Sodium}\mathrm{hydroxide}}{2\mathrm{NaOH}\left(\mathrm{aq}\right)}+\underset{\mathrm{Hydrogen}}{{\mathrm{H}}_2\left(\mathrm{g}\right)}+\mathrm{large}\mathrm{amount}\mathrm{of}\mathrm{heat}\mathrm{energy}$
• As a reason, it is always stored in kerosene, as even a small amount of exposure causes dangerous reactions.

Therefore, Sodium is a reactive metal is true.