Sodium has a element symbol called NA. Its atomic number is 11. It has a atomic mass of 22.989769 ± 0.00000002 u. Sodium is a solid and also a metal. Sodium is not a Rare Earth Element its family name is Alkali metal. Sodium was founded by Humphry Davy in 1807. Sodium was many use such a soap, glass, table salt, and baking soda. Appearance of Sodium in soft, bright silvery white metal. It has a melting point of 207.9°F. Sodium is an abundant element. It is found in the sun and many other stars.Sodium is a silvery-white metal belonging to Group 1 in the Periodic Table. Within the Earth's crust, sodium is the sixth most abundant element overall and the most abundant alkali metals.