Question

what is the heliam........​

Answer 1

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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
• Discoverers: Pierre Janssen, Per Teodor Cleve, Norman Lockyer

Answer 2

Answer:

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

Explanation:

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