Beryllium: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Mark Widmer
(Opening paragraph revised to match new standard: Typical phase (gas/liq/sol), symbol, Z, and std. atomic weight.)
mNo edit summary
 
Line 18: Line 18:
Beryllium is toxic to living organisms.
Beryllium is toxic to living organisms.


It is a strategic material in nuclear weapons, specifically acting as a [[fission device#neutron reflection|neutron reflector]] surrounding the fission core, increasing its neutron density, and decreasing the size of the device. A [[beryllium reflector]] was first used operationally in the U.S. [[Mark 12 (nuclear weapon)]],
It is a strategic material in nuclear weapons, specifically acting as a [[fission device#neutron reflection|neutron reflector]] surrounding the fission core, increasing its neutron density, and decreasing the size of the device. A [[beryllium reflector]] was first used operationally in the U.S. [[Mark 12 (nuclear weapon)]],[[Category:Suggestion Bot Tag]]

Latest revision as of 06:01, 18 July 2024

This article is a stub and thus not approved.
Main Article
Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
MSDS [?]
Isotopes [?]
Properties [?]
 
This editable Main Article is under development and subject to a disclaimer.
Beryllium
9.012182(3)



  Be
4
1s22s2
[ ? ] Alkaline Earth Metal:
Properties:
Steel-gray, low-density, brittle metal
Hazard:
Toxic, carcinogenic

Beryllium is a chemical element, typically found as a solid in its elemental form. It has the chemical symbol Be, atomic number (number of protons) Z = 4, and a standard atomic weight of 9.012182 g/mol.

Beryllium is considered to be a member of the "Alkaline Earth Metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 2471 °C, and a melting point of 1287 °C. Its density is 1.85 g/cc.

Beryllium is toxic to living organisms.

It is a strategic material in nuclear weapons, specifically acting as a neutron reflector surrounding the fission core, increasing its neutron density, and decreasing the size of the device. A beryllium reflector was first used operationally in the U.S. Mark 12 (nuclear weapon),