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Nucleus: Common Terms

An isotope of...

Question

An isotope of zirconium has 25% more neutrons as compared with protons. Atomic mass number of isotope is

A

40

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B

50

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C

10

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D

90

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Solution

The correct option is D
90

Z = 40 n = 40 + 10

A = 40+50 = 90

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