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Q. |
An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is– |
A. | 17 |
B. | 19 |
C. | 36 |
D. | 53 |
Answer» B. 19 | |
Explanation: Mass Number = number of protons (atomic number) + nu.sriber of neutrons. So as per the question, 36= number of neutrons + 17. Number of neutrons= 36 -17= 19 |
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