How do a sodium atom and a positive ion differ

Asked by admin @ 03/08/2021 in Chemistry viewed by 325 People

State the difference between sodium atom and sodium ion.

Answered by admin @ 03/08/2021

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.

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