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In the nucleus of ""(20) Ca ^(40) , ...

In the nucleus of `""_(20) Ca ^(40) ` , there are ______.

A

20 protons and 40 neutrons

B

20 protons and 20 neutrons

C

20 protons and 40 electrons

D

40 protons and 20 electrons

Text Solution

Verified by Experts

The correct Answer is:
B
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