Question

Metals like calcium and magnesium are never found in their free state in nature.

Answer 1

Metals like calcium and magnesium exist in impure forms:

• Metals tend to lose electrons.
• Their reactivity is compared on the basis of electron-donating power.
• Metals like $\mathrm{Ca}$ and $\mathrm{Mg}$ are very reactive metals.
• The atomic number of Calcium is 20 and the electronic configuration is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}4{\mathrm{s}}^2$
• The atomic number of Magnesium is 12 and the electronic configuration is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^2$
• They combine with other nonmetals to complete their octet, so these exist in impure form.
• They can react with oxygen even at room temperature therefore they are never found in the free state in nature.

Therefore, Metals like calcium and magnesium are never found in their free state in nature.