Tabla

Electronic ConfigurationNe 3s1

Melting Point97.96°C

Boiling Point883.1°C

Density0.971g cm⁻³

Description

Soft silvery reactive element belonging to group 1 of the periodic table (alkali metals). It is highly reactive, oxidizing in air and reacting violently with water, forcing it to be kept under oil. It was first isolated by Humphrey Davy in 1807.

Covalent Radius155pm

Double160pm

Ionisation Energies

Oxidation States0, +1

Uses

There are few uses for the pure metal, however its compounds are used in medicine, agriculture and photography. Sodium chloride (NaCl) is table salt. Liquid Sodium is sometimes used to cool nuclear reactors.

Electron Affinity52.867kJ mol⁻¹

Electronegativity0.93PAULING

Atomic Volume23.7cm³ mol⁻¹

Atomic Radius190pm

Metallic Radius157pm

Van Der Waals Radius227pm

Sources

Obtained by electrolysis of melted Sodium chloride (salt), borax and cryolite.

Discovery

Discovered in 1807 by Sir Humphrey Davy in England

Name Origin

Medieval Latin: sodanum, (headache remedy); symbol from Latin natrium, (Sodium carbonate).

CAS7440-23-5

Crust Abundance2.36x10⁴mg kg⁻¹

Sea Abundance1.08x10⁴mg dm⁻³

Enthalpy of Vapourisation 97.9kJ mol⁻¹

Enthalpy of Fusion2.64kJ mol⁻¹

Enthalpy of Formation107.5kJ mol⁻¹

Specific Heat - 20°C1.222J (g ⋅ K)⁻¹

Thermal Conductivity142W (m ⋅ K)⁻¹

Isotope	Abundance	Half Life
23Na	100%	-
22Na	-	-

https://reuben.science

https://github.com/reubn/tabla

Using data from mendeleev.

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