Biniyamdetamo90 Biniyamdetamo90

06-07-2021
Chemistry

contestada

Which of the following two periods contain the same number of element?
A. 2 & 3
B.3 & 4
c. 4 & 6
D. 2 & 4

Respuesta :

keighleydudley keighleydudley

06-07-2021

Answer:

4 and 6

Explanation:

Period 4 has 18 elements and so does period 6.

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