natalierose2007 natalierose2007

09-11-2020
Chemistry

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The picture shows a periodic table with elements X and Y.

If the atomic number of element X is 3, then what is the atomic number of element Y?
A. 5
B. 7
C. 19
D. 25

Respuesta :

Venom10 Venom10

09-11-2020

Answer:

7

the atomic number of element X is 3, then atomic number of element Y is 7

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