Atomic Number of Boron

Boron Atomic Number

Atomic Number of Boron is 5.

Chemical symbol for Boron is B. Number of protons in Boron is 5. Atomic weight of Boron is 10.81 u or g/mol. Melting point of Boron is 2300 °C and its the boiling point is 2550 °C.

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

About Boron

Boron is an essential chemical element for plants and an important one for animals (but in small doses). The name of the chemical element has Arabic roots, and in its pure form boron is dark color powder. However, it does not exist free in nature, only as a part of chemical compounds, with borax being the most popular of those. Boric acid is extensively used in medicine as an antiseptic, and boric oxide is often used to increase the strength of glass. Boron is a metalloid, so it demonstrates properties of both metals and non-metals.

Properties of Boron Element

Atomic Number (Z)5
Atomic SymbolB
Group13
Period2
Atomic Weight10.81 u
Density2.34 g/cm3
Melting Point (K)2349 K
Melting Point (℃)2300 °C
Boiling Point (K)4200 K
Boiling Point (℃)2550 °C
Heat Capacity1.026 J/g · K
Abundance10 mg/kg
State at STPSolid
OccurrencePrimordial
DescriptionMetalloid
Electronegativity (Pauling) χ2.04
Ionization Energy (eV)8.29803
Atomic Radius85pm
Covalent Radius82pm
Valence Electrons3
Year of Discovery1808
DiscovererDavy and Gay-Lussac

What is the Boiling Point of Boron?

Boron boiling point is 2550 °C. Boiling point of Boron in Kelvin is 4200 K.

What is the Melting Point of Boron?

Boron melting point is 2300 °C. Melting point of Boron in Kelvin is 2349 K.

How Abundant is Boron?

Abundant value of Boron is 10 mg/kg.

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

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

When was Boron Discovered?

Boron was discovered in 1808.


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