Chemistry, asked by Anonymous, 1 year ago

From the standpoint of atomic structure, what determines which element will be the first and which, the last in a period of the periodic table???

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Answers

Answered by PAINst
2
YOO
IT THE NUMBER OF SHELLS AND NUMBER OF ELECTRONS ON THEM.

SURE IT WILL HELP YOU
Answered by AJAYMAHICH
2
Protons are present in the center or nucleus of an atom. They are positively charged. The number of protons present is what defines each element. Hydrogen has 1. Helium has two. Lithium has 3. If any atom were to somehow gain or lose a proton it literally becomes a different element.

Take one proton from a Helium atom and it is no longer Helium but becomes Hydrogen.

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