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What is the mass number of an atom which contains 21 electrons,21 protons and 24 neutrons

What is the mass number of an atom which contains 21 electrons,21 protons and 24 neutrons
asked 190k views
8 votes
What is the mass number of an atom which contains 21 electrons,21 protons and 24 neutrons

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User Jerebear
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1 Answer

5 votes

Answer:

The atomic mass number is 45.

Hope this helps

answered
User Ingo Kegel
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