Lithium

Statistics:

• Name: Lithium
• Symbol: Li
• Classification: Alkali Metals
• Atomic Number: 3
• Atomic Mass: 6.941 g/mol
• Density: 0.53 g/cm³
• Melting: 180.5°C
• Boiling: 1317°C
• Protons & Electrons:3
• Neutrons:4
• Discovered: 1817
• Discovered By: Arfwedson
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 1

Isotopes:

Isotope: Half-life

• ⁶Li: stable
• ⁷Li: stable

Brief Summary

Lithium is a Alkali Metals with the symbol 'Li' and contains 3 Protons & Electrons with 4 neutrons in the nucleus of the atom. Lithium has an atomic mass of 6.941 g/mol and, at a temperature of 20°C, has a density of 0.53 g/cm³. It will melt at a temperature of 180.5°C and boil at 1317°C.

Lithium was discovered by Arfwedson in 1817 and is named 'Lithium' From the Greek word lithos (stone).

Some common usages for Lithium: batteries, ceramics, lubricants.

Definitions and Notes

Density listed is at a temperature of 20°C.

Isotopes are forms of an element who have the same atomic number but different mass because they contain different number of neutrons.

Half-life is the time required for a quantity of a subject to fall to half of its current quantity.

MLA Citing Format

Lithium :: Li :: 3 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/lithium.html>.