Strontium (Sr)
Makes fireworks glow bright red.
Strontium facts
- Symbol
- Sr
- Atomic number
- 38
- Atomic mass
- 87.62
- Family
- Alkaline earth metals
- Period
- 5
- Group
- 2
What does strontium react with?
Strontium makes a new substance with 15 other elements and chemicals in our lab:
- Strontium + HydrogenStrontium hydride Sr + H₂ → SrH₂ · When heated · Try it
- Strontium + CarbonStrontium carbide Sr + 2C → SrC₂ · Only in a very hot furnace · Try it
- Strontium + NitrogenStrontium nitride 3Sr + N₂ → Sr₃N₂ · Only when heated very strongly · Try it
- Strontium + OxygenStrontium oxide 2Sr + O₂ → 2SrO · When heated · Try it
- Strontium + FluorineStrontium fluoride Sr + F₂ → SrF₂ · At room temperature · Try it
- Strontium + PhosphorusStrontium phosphide 3Sr + 2P → Sr₃P₂ · When heated · Try it
- Strontium + SulfurStrontium sulfide Sr + S → SrS · When heated · Try it
- Strontium + ChlorineStrontium chloride Sr + Cl₂ → SrCl₂ · At room temperature · Try it
- Strontium + SeleniumStrontium selenide Sr + Se → SrSe · When heated · Try it
- Strontium + BromineStrontium bromide Sr + Br₂ → SrBr₂ · At room temperature · Try it
- Strontium + TelluriumStrontium telluride Sr + Te → SrTe · When heated · Try it
- Strontium + IodineStrontium iodide Sr + I₂ → SrI₂ · At room temperature · Try it
- Strontium + PoloniumStrontium polonide Sr + Po → SrPo · Only in a special nuclear lab (it is radioactive) · Try it
- Strontium + WaterStrontium hydroxide + hydrogen gas Sr + 2H₂O → Sr(OH)₂ + H₂ · At room temperature · Try it
- Strontium + Hydrochloric AcidStrontium chloride + hydrogen gas Sr + 2HCl → SrCl₂ + H₂ · At room temperature · Try it
It also blends into a mixture, like an alloy, with 74 other metals when melted together.
Nothing happens when it's simply mixed with 9 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.