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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
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Correct Answer: Option B
Explanation

The mass number = number of neutrons + atomic number.

number of neutrons = The mass number - atomic number.

number of neutrons = 37 - 17 = 20

There is an explanation video available below.

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Explanation Video

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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995