Element: hydrogen |
Name : hydrogen |
Symbol : H |
Atomicnumber : 1 |
Relativeatomicmass : 1.008 range: [1.00784, 1.00811] m [see notes g m r] |
Standardstate : gas at 298 K |
Appearance : colourless |
Classification : Non-metallic |
Groupinperiodictable : 1 |
Groupname : None |
Periodinperiodictable : 1 |
Blockinperiodictable : s |
Shellstructure : 1 |
CASRegistry : 1333-74-0 |
Description : Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up about about 90% of the universe by weight. |