Sodium
(Na)

most abundant element on earth

Family : Alkali Metal

Atomic Number : 11

Group number : 1

Atomic Mass : 22.99

Number of isotopes : 23na

Proton number : 11

Electron number : 11

Neutron number : the number of neutrons vary

Number of energy : 3

Number of valence electron : 1

Element Classification : Metal


Sodium was dicovered by Sir Humphrey Davy at 1807 in England. Origin of name: from the English word " soda " . ( the origin of the symbol Na comes from the Latin word " natrium " ) . Made by the electrolysis of very dry molten sodium hydroxide .

Physical Properties :

- melting point : 370.87

- boiling point : 1156

- liquid range : 785.13

- critical temp : 2573

- hardness : 0.5

Chemical Properties :  the  oxidation number for sodium is +1. the oxidation number is 1 because it is a metal and belongs to group 1 which is always +1. Sodium oxide is a chemical compound and is used in ceramics and glasses through not in a raw form.

Comment Stream