Question

the valency of sodium is one why​

Answer 1

Answer:

THE VALENCY OF SODIUM IS ONE COZ:

Explanation:

the outermost orbit of sodium contains one valence electron . it donates it to form octet . it's atomic no. is 11 so electronic configuration is 2,8,1.

Answer 2

The valency of sodium is one due to the following reasons:

• The atomic number of Sodium is 11, so the electronic configuration is as follows:

                             K       L       M

                    Na     2       8       1

• A Sodium atom has one valence electron in its valence shell. To acquire the stability and to complete the octet, it requires either 7 more electrons or gave up its one electron.
• Since donating one electron is easy and requires less energy than gaining 7 electrons, so sodium donates its one electron and acquires a positive charge and valency one.
• That is why the valency of sodium is one.

Hence, the valency of sodium is one.