Question

An element’s _____ shows the number of protons in its atom.

Answer 1

An element's atomic number shows the no of protons in it...

Step-by-step explanation:

because atomic number of element is equal to no of protons present in it...

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Answer 2

Atomic number

Step-by-step explanation:

An element's atomic number is equal to the number of protons in the nuclei of any of its atoms.