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NTA Abhyas NEET2020ChemistryClassification of Elements and Periodicity in PropertiesPractice

An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the nucleus of the atom will be

Options

  1. A26
  2. B30
  3. C36
  4. D56

Correct answer

B. 30

Step-by-step solution

Atomtextc number is 26 = P = e atomtextc weight is 56 = P + N so representation is 26 X 56 N = A - E = 56 - 26 = 30

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