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Question

A nuclide U23892 has all the following except ?


A

92protons

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B

146neutrons

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C

238nucleons

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D

92neutrons

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Solution

The correct option is D

92neutrons


Explanation for correct option:

(D) 92neutrons

  • An atom that has a set number of protons and neutrons in its nucleus is referred to as a nuclide.
  • A nuclide consists of protons and neutrons also called nucleons.
  • In U23892, there are 92 protons,92 electrons, 146 neutrons
  • neutrons 23892=146
    nucleons=p+n
    nucleons=92+146
    nucleons=238
  • So, the nuclide U23892 has all the following except 92 neutrons. So, this is the correct option.

Explanation for incorrect option:

(A) 92protons

  • From the above calculation, the uranium has 92protons. So, this is not the exception of uranium. So, this is an incorrect option.

(B) 146neutrons

  • From the above calculation, the uranium has 146neutrons. So, this is not the exception of uranium. So, this is an incorrect option.

(C) 238nucleons

  • The sum of protons and neutrons in uranium is 238nucleons. So, this is not the exception of uranium. So, this is an incorrect option.

Hence, the uranium contains all except this (D) 92neutrons


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