Atomic Number of Beryllium

Beryllium Atomic Number

Atomic Number of Beryllium is 4.

Chemical symbol for Beryllium is Be. Number of protons in Beryllium is 4. Atomic weight of Beryllium is 9.0121831 u or g/mol. Melting point of Beryllium is 1278 °C and its the boiling point is 2970 °C.

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

About Beryllium

Beryllium is a softish metal of grey and silver color. It has quite a low density and quite a high melting point for the light metals of the Periodic Table. Beryllium is an alkaline metal which is toxic and resists to oxidation in normal temperatures. It is usually alloyed with such metals as nickel and copper to produce various types of wires, contacts, springs, etc., especially for producing aircrafts, communication devices, and many other things. This chemical element can be found in about 30 natural sources, including precious stones like aquamarine, emerald, and others, thus used in jewelry.

Use of Beryllium

Beryllium (Be), a light and strong metal, is used in metallurgy as a hardening agent. One of the most common applications of beryllium is in making windows for X-ray tubes. This element is often used for making accelerometers, gyroscopes and building some parts for aircraft, guided missiles, space vehicles, etc. There is another interesting usage of Beryllium. Beryllium mirror is used by NASA for the James Webb Space Telescope because it holds its shape at cryogenic temperatures.

Beryllium is also used in electronics, healthcare, acoustics, and some different applications too.

Compounds with Beryllium

Properties of Beryllium Element

Atomic Number (Z)4
Atomic SymbolBe
Atomic Weight9.0121831 u
Density1.85 g/cm3
Melting Point (K)1560 K
Melting Point (℃)1278 °C
Boiling Point (K)2742 K
Boiling Point (℃)2970 °C
Heat Capacity1.825 J/g · K
Abundance2.8 mg/kg
State at STPSolid
DescriptionAlkaline earth metal
Electronegativity (Pauling) χ1.57
Ionization Energy (eV)9.3227
Atomic Radius105pm
Covalent Radius90pm
Valence Electrons2
Year of Discovery1797

What is the Boiling Point of Beryllium?

Beryllium boiling point is 2970 °C. Boiling point of Beryllium in Kelvin is 2742 K.

What is the Melting Point of Beryllium?

Beryllium melting point is 1278 °C. Melting point of Beryllium in Kelvin is 1560 K.

How Abundant is Beryllium?

Abundant value of Beryllium is 2.8 mg/kg.

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

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

When was Beryllium Discovered?

Beryllium was discovered in 1797.