which of the following is a corresct electron configuration ofan atom? a. 1s^2s^

Question

which of the following is a corresct electron configuration ofan atom? a. 1s^2s^2p68 b. 1s^2 2s^ 3s^2 3p^6 3d^2 c. 1s^2 2s^2 2p^6 3s^2 3p^4 d. 1s^2 2s^2 2p^4 3s^2 3p^3 The electron configuration of an element is 1s^2 2s^2 2p^63s^2 3p^6. The element is: a. silver    b. argon   c.silicon   d. selenium which of the following is a corresct electron configuration ofan atom? a. 1s^2s^2p68 b. 1s^2 2s^ 3s^2 3p^6 3d^2 c. 1s^2 2s^2 2p^6 3s^2 3p^4 d. 1s^2 2s^2 2p^4 3s^2 3p^3 The electron configuration of an element is 1s^2 2s^2 2p^63s^2 3p^6. The element is: a. silver    b. argon   c.silicon   d. selenium

Explanation / Answer

   The correct electronic configuration isOption C     That is1S22S22P63S23P4 This is only folow Hundu' s Rule . The given Electronic configurationis  1S22S22P63S23P6is belongs to the element Argon(Ar).    Because it is belongs to the third period andcompletely filleds hell

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