H1
The first element of the periodic table is Hydrogen. Atomic no. 1, it is the lightest element that exists in the form of colourless gas. It is the most reactive substance and is found most abundantly in the atmosphere.
Read more...
The first element of the periodic table is Hydrogen. Atomic no. 1, it is the lightest element that exists in the form of colourless gas. It is the most reactive substance and is found most abundantly in the atmosphere.
Read more...