The electronic configuration 1s^2 2s^2 2p^6 3p^2 4p^2 3d^5 4p^6 2s^2 4d^10 5p^6

Question

The electronic configuration 1s^2 2s^2 2p^6 3p^2 4p^2 3d^5 4p^6 2s^2 4d^10 5p^6 is the correct electronic configuration for which atom or ion (s)? (A) As^3 (B) Sb^3 (C) Sb (D) (A) and (B) A sealed vessel contains only oxygen and nitrogen gas The total pressure of the sealed container is one atmosphere (atm), If the partial pressure of oxygen in sealed container is 430 torn what is the partial pressure nitrogen gas? (A) 530 torr (B) 431 torr (C) 1190 torr (D) There is not enough information to determine nitrogen's partial pressure

Explanation / Answer

Hi

45. (B) Since Sb3- has same number of electrons as in the electronic configuration.

46. T (total pressure) = 1 atm= 760 torr

P1 (of oxygen) = 430 torr

P2 ( pressure of nitrogen) = T- P1

= 760-430 torr

=330 torr (A)

Thank you

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