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If an isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons, its mass number is_______.
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34 votes
If an isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons, its mass number is_______.

User Esmaeel Ibrahim
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1 Answer

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23 votes

Answer:

mass number = 18

Step-by-step explanation:

The mass number is the total amount of protons and neutrons in an atom. Therefore, if there are 8 protons and 10 neutrons, the mass number is 18 (8 + 10 = 18).

User Vikas Ojha
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