Boron (B)

Found in borax, used to make slime!

Boron facts

Symbol
B
Atomic number
5
Atomic mass
10.81
Family
Metalloids
Period
2
Group
13

What does boron react with?

Boron makes a new substance with 26 other elements and chemicals in our lab:

  • Boron + CarbonBoron carbide 4B + C → B₄C · Only in a very hot furnace · Try it
  • Boron + NitrogenBoron nitride 2B + N₂ → 2BN · Only in a very hot furnace · Try it
  • Boron + OxygenBoron trioxide 4B + 3O₂ → 2B₂O₃ · Only when heated very strongly · Try it
  • Boron + FluorineBoron trifluoride 2B + 3F₂ → 2BF₃ · At room temperature · Try it
  • Boron + MagnesiumMagnesium boride Mg + 2B → MgB₂ · Only in a very hot furnace · Try it
  • Boron + PhosphorusBoron phosphide B + P → BP · Only in a very hot furnace · Try it
  • Boron + SulfurBoron trisulfide 2B + 3S → B₂S₃ · Only when heated very strongly · Try it
  • Boron + ChlorineBoron trichloride 2B + 3Cl₂ → 2BCl₃ · When heated · Try it
  • Boron + CalciumCalcium boride Ca + 6B → CaB₆ · Only in a very hot furnace · Try it
  • Boron + TitaniumTitanium boride Ti + 2B → TiB₂ · Only in a very hot furnace · Try it
  • Boron + VanadiumVanadium boride V + 2B → VB₂ · Only in a very hot furnace · Try it
  • Boron + ChromiumChromium boride Cr + 2B → CrB₂ · Only in a very hot furnace · Try it
  • Boron + IronIron boride Fe + B → FeB · Only in a very hot furnace · Try it
  • Boron + CobaltCobalt boride Co + B → CoB · Only in a very hot furnace · Try it
  • Boron + NickelNickel boride 2Ni + B → Ni₂B · Only in a very hot furnace · Try it
  • Boron + BromineBoron tribromide 2B + 3Br₂ → 2BBr₃ · Only when heated very strongly · Try it
  • Boron + ZirconiumZirconium boride Zr + 2B → ZrB₂ · Only in a very hot furnace · Try it
  • Boron + NiobiumNiobium boride Nb + 2B → NbB₂ · Only in a very hot furnace · Try it
  • Boron + MolybdenumMolybdenum boride Mo + B → MoB · Only in a very hot furnace · Try it
  • Boron + IodineBoron triiodide 2B + 3I₂ → 2BI₃ · Only when heated very strongly · Try it
  • Boron + LanthanumLanthanum hexaboride La + 6B → LaB₆ · Only in a very hot furnace · Try it
  • Boron + CeriumCerium boride Ce + 6B → CeB₆ · Only in a very hot furnace · Try it
  • Boron + SamariumSamarium boride Sm + 6B → SmB₆ · Only in a very hot furnace · Try it
  • Boron + HafniumHafnium boride Hf + 2B → HfB₂ · Only in a very hot furnace · Try it
  • Boron + TantalumTantalum boride Ta + 2B → TaB₂ · Only in a very hot furnace · Try it
  • Boron + TungstenTungsten boride W + B → WB · Only in a very hot furnace · Try it

Nothing happens when it's simply mixed with 72 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.