Question

State the difference between sodium atom and sodium ion.

Answer 1

How do a sodium atom and a sodium ion differ?

IONS Are charged particles formed when atoms lose or gain electrons(s) to achieve a full valence shell which is a stable arrangement. Metals form + ions; non-metals form -ions.

Sodium atom

Sodium atom is electrically neutral.

In sodium atom, there are 11 protons and 11 electrons, i.e., equal number of protons and electrons

A sodium atom has only one electron in its valence shell

The size of sodium atom is bigger than that a sodium ion.

The sodium atom is very reactive. It reacts with air or water readily.

Sodium ion:

Sodium ion is positively charged

In sodium ion, there are 11 protons but 10 electrons, i.e., sodium ion contains lesser number of electrons.

Sodium ion has 8 electrons in its valence shell.

The size of sodium ion is smaller than that of sodium atom.

Answer 2

$\huge\mathcal{Answer}$

Sodium atom is neutral whereas sodium ion is a charged specie with a charge of +1.The number of protons and electrons in sodium atom is same i.e 11 whereas the number of protons in sodium ion (11) is more than number of electrons (10).The size of sodium ion is smaller than sodium atom.

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