What is first and second element of the periodic table?

Question

Chemistry

Lilyana Lambert

16 September, 07:01

What is first and second element of the periodic table?

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Answers (2)

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Kaylee Barber · Answer 1

The elements on the periodic table are listed in increasing atomic number.

Hydrogen is the first element, and has an A. N. of 1. Also, its very interesting how it doesn't need 8 valence electrons to be stable.

The second element is Helium, which has an A. N (atomic number) of two.

America Sloan · Answer 2

Hydrogen = First element, H

Helium=Second Element, He