The Lewis dot structure for the potassium ion (K+) is quite simple due to the nature of potassium’s electron configuration. Potassium, located in group 1 of the periodic table, has one electron in its outermost shell.
When potassium forms a K+ ion, it loses that single valence electron. Therefore, in its ionic form, potassium has no dots representing valence electrons, as it has achieved a stable electron configuration, resembling that of the nearest noble gas, argon.
In summary, the Lewis dot structure for the K+ ion can simply be represented as:
K+
where there are no dots around the symbol, indicating the absence of valence electrons in the ion.