Beryllium notes

Beryllium is a chemical element with atomic number 4 and the symbol Be.

The nucleus of a beryllium atom consists of 4 protons and 5 neutrons.

Beryllium is a free element and it's colour is steel gray.
It is a strong, lightweight and brittle alkaline earth metal.

Berylliums melting point is 1287 degrees celcius.
And it's boiling point is 2469 degrees celcius.

Beryllium has exceptional stiffness.
The modulus of elasticity of beryllium is approximately 50 percent greater than that of steel.
Beryllium is a metal with the best heat dissipation characteristics per unit weight
And has relatively low coefficient of linear thermal expansion.

Beryllium has high electrical conductivity.
And it is non magnetic.

Production:
 Beryllium is most commonly extracted from the mineral beryl, which is either sintered using an extraction agent or melted into a soluble mixture.

Uses:
 Beryllium is added as an alloying element to aluminium, copper, iron and nickel.
  Extra: Tools made of beryllium copper alloys are strong and hard
         and do not create sparks when striking a steel surface.
 Beryllium metal is a desirable aerospace material for aircraft components, missiles, spacecraft, and satellites.
  Because of the combination of high flexural rigidity, thermal stability, thermal conductivity and low density.
 It is the most common window material for X-ray equipment and components of particle detectors.
 Beryllium and beryllium oxide have high thermal conductivities which led to their use in thermal management applications.
 Hand tools made of beryllium are used to tune the highly magnetic klystrons, magnetrons, traveling wave tubes in the field
 of radio communications.
 Beryllium oxide is often used as an insulator base plate in high power transistors in radio frequency transmitters for telecommunications.
 Beryllium is commonly used in some neutron sources in laboratory devices in which relatively few neutrons are needed.
 Beryllium is used in fuel fabrication for CANDU reactors.
 And beryllium is a p-type dopant in III-V compound semiconductors

Possible use:
 Beryllium oxide is being studied for the use in increasing the thermal conductivity of uranium dioxide nuclear fuel pellets.

Extra, safety:
 The commercial use of beryllium requires the use of appropriate dust control equipment,
 because the toxicity of inhaled beryllium containing dusts can cause a chronic life threatening allergic disease in some people