Boron

Statistics:

• Name: Boron
• Symbol: B
• Classification: Metalloid
• Atomic Number: 5
• Atomic Mass: 10.811 g/mol
• Density: 2.46 g/cm³
• Melting: 2300°C
• Boiling: 2550°C
• Protons & Electrons:5
• Neutrons:6
• Discovered: 1808
• Discovered By: Davy and Gay-Lussac
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 3

Isotopes:

Isotope: Half-life

• ¹⁰B: stable
• ¹¹B: stable

Brief Summary

Boron is a Metalloid with the symbol 'B' and contains 5 Protons & Electrons with 6 neutrons in the nucleus of the atom. Boron has an atomic mass of 10.811 g/mol and, at a temperature of 20°C, has a density of 2.46 g/cm³. It will melt at a temperature of 2300°C and boil at 2550°C.

Boron was discovered by Davy and Gay-Lussac in 1808 and is named 'Boron' From borax and carbon.

Some common usages for Boron: heat resistant alloys.

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

Boron :: B :: 5 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/boron.html>.