These are almost one-quarter of the periodic table and are mainly found in the ... carbon, hydrogen, nitrogen, phosphorus, sulphur, chlorine, potassium, sodium, calcium and magnesium.

Nitrogen on periodic table of the elements. Do you remember how many elements there are in the periodic table? Spoiler: it’s probably different than you remember if you went to school before 2010.

You interact with about two-thirds of the elements of the periodic table every day. Some, like carbon, oxygen, and nitrogen, make up our bodies and the air we breathe. Yet there is also a class of ...