Question #8923a

1 Answer
Dwight
Dec 14, 2017

38 protons, 36 electrons and 50 neutrons

Explanation:

The atomic number (38) is the number of protons. Since the charge on the ion is +2, we know there are two more protons than electrons. Hence 36 electrons.

The 88 is the mass number of the atom (which can have a variety of values, even for the same element). It tells us the total number of protons+neutrons in the nucleus. Subtract the atomic number from this, and you have the number of neytrons.

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