What is the first element in the periodic table? A. Hydrogen (Answer) B. Helium C. Nitrogen D. Carbon

What is the first element in the periodic table?

A. Hydrogen (Answer)

B. Helium

C. Nitrogen

D. Carbon
by

1 Answer

Answer :

A. Hydrogen (Answer)
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Give reason: In the first period, hydrogen and helium are not placed adjacent to each other OR There is a big gap between hydrogen and helium in the periodic table.

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