The distribution of outermost shell electrons ... properties requires extracting information about its valence electrons. However, it has been difficult to experimentally isolate only the valence ...

For example, the electron configuration of oxygen (O) is 1s 2 2s 2 2p 4, indicating it has 6 valence electrons. The electrons in the outermost shell play an important role in chemical bonding.

Miao identified two compounds that could form and remain stable up to very high pressures: cesium trifluoride (CsF3), where cesium has shared its one valence electron and two from an inner shell ...

The distribution of outermost shell electrons ... information about its valence electrons. However, it has been difficult to experimentally isolate only the valence electron information, leading ...