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AP EAMCET20228 Jul 2022Morning ShiftChemistryStructure of AtomActual

Which of the following element has two electrons in Q shell in its ground state?

Options

  1. ABa
  2. BRa
  3. CLa
  4. DPb

Correct answer

B. Ra

Step-by-step solution

Q shell n =7 indicates the position of the element in period 7 in the periodic table. Ra : electronic configuration =4 ~s ^2 (valence shell )

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