What is the formula of the ion formed when potassium achieves noble-gas electron configuration?

Answer 1

K+

And the K ion configuration is 1s2 2s2 2p6 3s2 3p6

Noble gases have the configuration up to 3p6

Pseudo noble gases have it up to 3d10

Answer 2

The ion formed when potassium achieves noble-gas electron configuration is K+ (potassium ion). This occurs when potassium loses one electron to have a full outer electron shell, similar to the nearest noble gas, argon.

Answer 3

K+ ion is formed and it is isoelectronic with argon

Answer 4

Potassium is in the 1st group. It has only 1 valence electron. It removes a electron and makes a +1 ion to get noble gas configuration.

Answer 5

K+

Answer 6

Argon