The electron configuration for potassium in the ground state:

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1 s^{2} 2 s^{2} p^{6} 3 s^{2} 3 p^{6} 4 s^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1 s^{2} 2 s^{2} p^{6} 3 s^{2} 3 p^{6} 4 s^{1}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

1 s^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1 s^{2} 2 s^{2} 2 p^{6} 3 p^{1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D $1 s^{2} 2 s^{2} p^{6} 3 s^{2} 3 p^{6} 4 s^{1}$
The electron configuration for potassium in the ground state
$1 s^{2} 2 s^{2} p^{6} 3 s^{2} 3 p^{6} 4 s^{1}$
Potassium is s block alkali metal with atomic number 19. Thus it has 19 electrons in the atom. The last electron enters 4s orbital.

Suggest Corrections

Similar questions

The electronic configuration of Ti is 1 $s^{2}$ 2 $s^{2}$ 2 $p^{6}$ 3 $s^{2}$ 3 $p^{6}$ 3 $d^{2}$ 4 $s^{2}$ and it represents

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {3 d}^{6} {4 s}^{1}

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{2}

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {3 d}^{3} {4 s}^{2}

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

Join BYJU'S Learning Program