Question

Write down the electronic configuration of k+ and cl-?

Answer 1

the EC of k+ is 2,8,8,2 and cl- is 2,8,8

Answer 2

For K⁺, we know K has 19 electrons but in K⁺ there are 18 electrons as one electron is lost.

So, electronic config. of K⁺ is: 1s²2s²2p⁶3s²3p⁶

For Cl⁻, we know Cl has 17 electrons but in Cl⁻ there are 18 electrons as one electron is gained.

So, electronic config. of Cl⁻ is: 1s²2s²2p⁶3s²3p⁶