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In-s [12.5K]
4 years ago
14

Which two periods have the same number of elements ​

Chemistry
2 answers:
Stels [109]4 years ago
7 0

Answer:

4 & 5 have the same number of elements

Bogdan [553]4 years ago
6 0

Answer:

Periods 2 and 3 have the same number of elements.

Explanation:

I think periods  4 and 5 also have the same number of elements.

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