25th November 2019

quora
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What is the chemical formula of helium?

The chemical formula for helium is He. It is a noble gas with stable configuration 1s² and atomic number is 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table.

What is the Amu of helium?

The mass of a proton is 1.007276 amu, and the mass of a neutron is 1.008665 amu. Since the nucleus of a helium 4 atom is made up of 2 neutrons and 2 protons, the sum total of these components is 4.031882 amu. One amu, atomic mass unit, is defined as one twelfth of the mass of a carbon 12 atom.
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