The total number of electrons present in all the p-orbitals of bromine is:

Question

The total number of electrons present in all the p-orbitals of bromine is: (A) 7 (B) 17 (C) 27 (D) 37

Tardigrade Admin · Accepted Answer

Write electronic configuration of Br atom according to aufbau rule and count number electrons of p-orbitals.
Br, atomic number is 35.
Configuration of bromine is

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{6}, 4 s^{2}, 3 d^{10}, 4 p^{5}

∴

Total p electrons in

B r = 6 + 6 + 5 = 17

ac

Q. The total number of electrons present in all the p-orbitals of bromine is:

7

17

27

37

Write electronic configuration of Br atom according to aufbau rule and count number electrons of p-orbitals. Br, atomic number is 35. Configuration of bromine is 1s2,2s2,2p6,3s2,3p6,4s2,3d10,4p5 ∴ Total p electrons in Br=6+6+5=17ac

Write electronic configuration of Br atom according to aufbau rule and count number electrons of p-orbitals.
Br, atomic number is 35.
Configuration of bromine is
$1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{6}, 4 s^{2}, 3 d^{10}, 4 p^{5}$
$∴$ Total p electrons in $B r = 6 + 6 + 5 = 17$ ac