An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?

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asked Jul 8, 2016 225k views

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Mohammed Awney · Answer 1 · 2016-07-14T19:59:11+0000

The atomic mass number is the number of neutrons and protons, and the atomic number is just the number of protons. Therefore, subtract the atomic mass number (35) from the atomic number (17) to find the number of neutrons. 35 - 17 = 18.

An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?

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