Explain why helium (He) is stable (unreactive), but hydrogen (H) is unstable (reactive)

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asked Jul 24, 2021 221k views

2 votes

Explain why helium (He) is stable (unreactive), but hydrogen (H) is unstable (reactive)

Chemistry
high-school

Giacomo Penuti asked

by Giacomo Penuti

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1 Answer

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Answer:

Helium is stable because it has 1 shell and the first shell can only have 2 electrons. Hydrogen is unstable because it has 1 shell but only 1 electron.

Shamal Karunarathne answered Jul 30, 2021

by Shamal Karunarathne

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