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Helium is a chemical element with the symbol he and atomic number 2. Chemical symbol for helium is he. Helium is a chemical element with symbol he and atomic number 2.
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It is the second most abundant element in the universe, following hydrogen. It has symbol he and atomic number 2. Classified as a noble gas, helium is a gas at 25°c (room temperature).
Helium (he) helium is the 2nd element in the periodic table and has a symbol of he and atomic number of 2.
Number of protons in helium is 2. Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, videos and images. It has an atomic weight of 4.00260 and a mass number of 4. 'sun') is a chemical element;
Atomic number of helium is 2. Atomic weight of helium is 4.002602 u or g/mol. Helium is the lightest noble gas with two electrons filling the 1s state to close the first shell. Seven isotopes of helium are known:
