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Atom consist of electrons , protons and ...

Atom consist of electrons , protons and neutrons . If the mass attributed to neutron were halved and that attributed to the electrons were doubled , the atomic mass of ` 6C^(12)` would be approximately :

A

remain approximately the same

B

be doubled

C

approximately be halved

D

be reduced by approximately 25%

Text Solution

Verified by Experts

The correct Answer is:
D
Number of neutrons in C - 12 = 6.
If mass of each netrons is halved. The mass of neucleons will be approx. =` 6+3 = 9 am u`. Thus, the mass of carbon will be reduced from 12 to 9. The approximate decrease is 25%.
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