What is first and second element of the periodic table?

Question

Alden Waller

Chemistry

21 February, 17:56

What is first and second element of the periodic table?

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Answers (2)

Know the Answer?

Sydnee Mcclain · Answer 1

Hydrogen = First element, H

Helium=Second Element, He

Marie Abbott · Answer 2

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.