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10-10-2021
Chemistry

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QUICK QUESTION: why is there 2 hydrogen in the periodic table? I noticed that there’s one hydrogen in group 1 and another in group 17.

Respuesta :

10-10-2021

Answer:

one is H and the other is HE

Explanation:

H (in group one) stands for Hydrogen, as for He (group 18) stands for Helium

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