Hydrogen

My element is hydrogen. It is the first element in the periodic table and it is also the first element created after the big bang. Its atomic number is 1 and its atomic mass is also 1. Being the lightest element. Hydrogen is also the most abundant element in the universe (not including dark mater). It makes up 90%. Pure hydrogen is not very abundant on earth. Hydrogen is one of the most reactive. It reacts with many metals, non-metals, gasses and organic compounds. Robert Doyle discovered it as an element in 1671. It has no taste, smell or color. Its boiling point is -252°C and its melting point is -258°C.  HYDROGEN WEB

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