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What is phosphorus? Atoms, elements, chemistry

By |2017-06-02T15:39:41+00:00June 2nd, 2017|Biology, Chemistry|

Diagram of a phosphorus atom Phosphorus atoms have fifteen protons and sixteen neutrons, so they're just a little lighter than sulphur atoms, in the middle of the range for atoms. Stars make phosphorus when two oxygen atoms get very hot and squash together into one phosphorus atom. All living things, both plants and [...]

Sulphur, eggs, and matches – Chemistry project

By |2017-06-01T23:15:53+00:00June 1st, 2017|Chemistry|

A hard-boiled egg To check out some sulphur for yourself, take an ordinary chicken egg and hard-boil it for about twelve minutes. Then break it open and smell the yellow yolk. That's the smell of hydrogen sulfide - a molecule made of hydrogen and sulphur. Now you can eat the egg for lunch (try [...]