What is the atomic weight of the lightest element on the periodic table? – 2017

What is the atomic weight of the lightest element on the periodic table?




1.00794




Hydrogen, H, is a colorless, odorless, nonmetallic, tasteless, highly flammable gas. It has an atomic mass of 1.00794 amu, which makes hydrogen the lightest element on the periodic table. Hydrogen, H, was named by Laviosier and is the most abundant element on the periodic table.




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