Chemistry, asked by sid96264, 9 months ago

which period contains two elements

Answers

Answered by shyam29158

Answer:

1st period

Explanation:

Answered by rahulkalra41

Answer:

There are only two elements in the first period: hydrogen and helium. It can be explained why there is less elements in the first row in modern theories of atomic structure.

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which period contains two elements​

Answers

which period contains two elements