Calculate number of neutrons present in 12*10^25 atoms of oxygen whose atomic no. is 8 and mass no. is 17 (Given: Na =6*10^23)
In this question , why you are dividing NA instead of multiplying .... Plss answer
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Answer:
1.08 x 10^27 neutrons
Explanation:
No. of neutrons in one atom of oxygen of mass no. 17 = 9
[no. of neutrons = mass no. - atomic no.]
therefore, no of neutrons in 12 x 10^25 atoms of oxygen = 9 x 12 x 10^25
= 1.08 x 10^ 27 neutrons
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