Science, asked by allistersimon100, 1 month ago

What do groups and periods label on a periodic table?

Answers

Answered by saripsorongsa

0

Answer:

in a Periodic Table of modern there are 18 groups and seven period

Explanation:

in group

they have same number of valence electron in a period number of sale remain same but the number of Valence Electrons increased by 1 unit

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