Question

Sum of number of protons, electrons and neutrons
in 12g of "'C is :-
(1) 1.8
(2) 12.044 x 1023
(3) 1.084 X1025
(4) 10.84 x1023
0​

Answer 1

Answer:

No of moles of the substance = weight/atomic mass. So 12g of carbon12 atom has 6.023*10^23 atoms . No

of protons electrons neutrons present in one carbon atom = 6. No of protons electrons neutrons present in 12 gram of carbon atom is 6*6.023*10^23 = 36.138*10^23. The question says no of protons,electrons and neutrons present in it. Therefore the answer is 3*36.138*10^23 = 1.08*10^25