How many protons (p) and neutrons (n) are in the atom of 38 90sr?

1 answer:

7 0

The number of protons is always equal to the atomic number of any element. strontium has 38 protons, which when taken away from 90 gives you 52 neutrons, which is three more neutrons than what Sr should have making 38 90Sr an isotope. Hope this helps.

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