marshalhaynes20 marshalhaynes20

14-12-2020
English

contestada

Just Chilling Honestly Ima put a problem but dont answer.
How many periods are on the Periodic Table of Elements? Group of answer choices?
Again dont answer i already know it
This is the answer.
1.The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups.

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ebbread ebbread

14-12-2020

thanks for the points

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