Beryllium (Be)

A light, strong metal used in space telescopes.

Beryllium facts

Symbol
Be
Atomic number
4
Atomic mass
9.0122
Family
Alkaline earth metals
Period
2
Group
2

What does beryllium react with?

Beryllium makes a new substance with 10 other elements and chemicals in our lab:

  • Beryllium + CarbonBeryllium carbide 2Be + C → Be₂C · Only in a very hot furnace · Try it
  • Beryllium + NitrogenBeryllium nitride 3Be + N₂ → Be₃N₂ · Only when heated very strongly · Try it
  • Beryllium + OxygenBeryllium oxide 2Be + O₂ → 2BeO · When heated · Try it
  • Beryllium + FluorineBeryllium fluoride Be + F₂ → BeF₂ · At room temperature · Try it
  • Beryllium + SulfurBeryllium sulfide Be + S → BeS · When heated · Try it
  • Beryllium + ChlorineBeryllium chloride Be + Cl₂ → BeCl₂ · When heated · Try it
  • Beryllium + BromineBeryllium bromide Be + Br₂ → BeBr₂ · When heated · Try it
  • Beryllium + IodineBeryllium iodide Be + I₂ → BeI₂ · When heated · Try it
  • Beryllium + PoloniumBeryllium polonide Be + Po → BePo · Only in a special nuclear lab (it is radioactive) · Try it
  • Beryllium + Hydrochloric AcidBeryllium chloride + hydrogen gas Be + 2HCl → BeCl₂ + H₂ · At room temperature · Try it

It also blends into a mixture, like an alloy, with 73 other metals when melted together.

Nothing happens when it's simply mixed with 15 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.