Question

Explain how alkali metals are different from noble gases?

Answer 1

The electronic configuration states that alkali metals are highly reactive with one valence electron while noble gases are non-reactive with a full valence band or no unpaired electrons (to attract other electrons for bond formation).

Answer 2

Alkali metals are different from noble gases in their nature of reactivity.

Explanation:

Alkali metals

• Alkali metals are different from noble gases.
• Alkali metal are reactive, soft metals with low densities. Lithium is the hardest metal.
• The reactivity increase as we go down the group because they have more electron shell.
• All alkali metals react vigorously with cold water.

Noble gases

• Noble gases are unreactive gases
• The elements in the zero group are known as noble gases.
• The noble gases are all chemically unreactive that means they are inert. Hence they are known as inert gases.
• They are colourless , non metals.