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Most Important Selected Qs for JEE AdvancedChemistryClassification of Elements and Periodicity in Properties

An element has the atomic number Z = 9 1 . Which of the following is incorrect for the given element?

Options

  1. AThe group number in which element is placed is three
  2. BThe period number in which element is placed is seven
  3. CIt is an f-block element
  4. DThe outermost electronic configuration is 5 f^3 7 s^2

Correct answer

D. The outermost electronic configuration is 5 f^3 7 s^2

Step-by-step solution

5 f^2 7 s^2 6 d^1= outer most electronic configuration.

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