How many neutrons are present in atom with mass number and atomic number 37 and
CHEMISTRY
JAMB 2022
How many neutrons are present in atom with mass number and atomic number 37 and 17 respectively?
- A. 18
- B. 20
- C. 37
- D. 17
Correct Answer: B. 20
Explanation
The mass number = number of neutrons + atomic number.
number of neutrons = The mass number - atomic number.
number of neutrons = 37 - 17 = 20
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