Question

which is more stable k or k+

Answer 1

K+ is more stable than k

Answer 2

Here is the answer :

In terms of Chemistry, Stability happens only when an atom has filled it's outermost shell, In detail, S and P block elements should follow Octet Rule !.

K is in 1st Group that is , It is in S block,

Atomic number of k = 19,

Electronic Configuration :

1s² 2s² 2p6 3s² 3p6 4s¹,

We see that, Pottasium(k) has 1 electron in it's outermost shell,

So k+ will have, 8 outermost electrons,

According to Octet rule, K+ will be more stable !.

But remember K+ won't be free in state, It will combine with one negatively charged atom !.

Conclusion : K+ is stable, But it won't be in free State, It will be in combined state !. ,

Hope you understand, Have a great day !.
Thanking you, Bunti 360 !.