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What is helium?????​

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Helium is a chemical element with the SYMBOL He and atomic number 2. It is a colorless, odorless, TASTELESS, non-toxic, inert, monatomic gas, the first in the noble gas group in the PERIODIC table. Its boiling point is the lowest AMONG all the elements.

Symbol: He

Atomic mass: 4.002602 u

Atomic number: 2

Electron CONFIGURATION: 1s2

Boiling point: -268.9 °C

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