이유는 다음과 같습니다.
* 고귀한 가스 구성 : 고귀한 가스에는 전자의 외부 껍질이 가득 차있어 매우 안정적입니다. This configuration is characterized by having 8 electrons in their outermost shell (except for Helium, which has 2).
* Potassium's Configuration: Potassium has 19 electrons. Its electron configuration is:1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹.
* Missing Electron: To achieve a noble gas configuration, potassium would need to lose its single electron in the 4s orbital. This would make it isoelectronic (having the same number of electrons) to Argon (Ar), which has 18 electrons.
However:
* Ionic State: Potassium *can* achieve a noble gas configuration by losing its outermost electron and forming a positively charged ion (K⁺). In this state, it has the same electron configuration as Argon.
So, while potassium itself does not have a noble gas configuration, it can achieve one by forming an ion.
