A) 8, 10, 11
B) 10, 10, 10
C) 10, 11, 10
D) 11, 10, 10
Correct Answer: B
Solution :
[b] Heavy water is\[{{D}_{2}}O\] hence number of electrons \[=2+8=10\] number of protons = 10 Atomic mass of \[{{D}_{2}}\text{O}=4+16=20\] hence number of neutron = Atomic mass \[-\] number of protons \[=20-10=10\]
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