Question

which are first 20 elements of the element table

answer should be given in word form and the element form suppose e.g.
oxygen =O​

Answer 1

Answer:

The first 20 elements of periodic table are:

Hydrogen (H)

Helium (He)

Lithium (Li)

Beryllium (Be)

Boron (B)

Carbon (C)

Nitrogen (N)

Oxygen (O)

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Answer 2

Answer:

Hope it will help you

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