Atomic Number of Sodium

Sodium Atomic Number

Atomic Number of Sodium is 11.

Chemical symbol for Sodium is Na. Number of protons in Sodium is 11. Atomic weight of Sodium is 22.98976928 u or g/mol. Melting point of Sodium is 97,8 °C and its the boiling point is 892 °C.

» Boiling Point » Melting Point » Abundant » State at STP » Discovery Year

About Sodium

Sodium is one of the oldest known chemical elements since it is essential for human life. It is consumed by all of us in the form of salt we use for cooking many types of foods, but is a bit dangerous for human body in high amounts (causes high blood pressure). Sodium is a soft metal and is the 6th most common chemical element on our planet. Sodium is a reactive element, especially with water and other chemical compounds, that is why it can not be found in nature as metal. The number of common sodium compounds is quite large (with sodium chloride being the most common of those), and they are used in plenty of industries, including toothpaste production, producing soaps, foodstuffs, as well as industrial and nuclear chemistry, and many others.

Properties of Sodium Element

Atomic Number (Z)11
Atomic SymbolNa
Atomic Weight22.98976928 u
Density0.971 g/cm3
Melting Point (K)370.87 K
Melting Point (℃)97,8 °C
Boiling Point (K)1156 K
Boiling Point (℃)892 °C
Heat Capacity1.228 J/g · K
Abundance23600 mg/kg
State at STPSolid
DescriptionAlkali metal
Electronegativity (Pauling) χ0.93
Ionization Energy (eV)5.13908
Atomic Radius180pm
Covalent Radius154pm
Van der Waals Radius227
Valence Electrons1
Year of Discovery1807

What is the Boiling Point of Sodium?

Sodium boiling point is 892 °C. Boiling point of Sodium in Kelvin is 1156 K.

What is the Melting Point of Sodium?

Sodium melting point is 97,8 °C. Melting point of Sodium in Kelvin is 370.87 K.

How Abundant is Sodium?

Abundant value of Sodium is 23600 mg/kg.

What is the State of Sodium at Standard Temperature and Pressure (STP)?

State of Sodium is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure.

When was Sodium Discovered?

Sodium was discovered in 1807.

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