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choli [55]
2 years ago
15

What is the total number of neutrons in the nucleus of a neutral atom that has 19 electrons and a mass number of 39

Chemistry
1 answer:
zvonat [6]2 years ago
7 0

Answer:

NO OF NEUTRON =MASS NO -ATOMIC NO

=39-19

=20

bcz atomic no is equal to no of electrons

mark as brainliest

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