The allegory not only draws on the theory of forms, but it is connected both to the concept of forms and Plato's theory of the stages of life. 1  At the lowest stage, the cognitive stage of imagination (in Greek, eikasia), the prisoners exist bound and hindered in their perspective.
Since any orbital can hold a maximum of two electrons, the bonding orbital in H 2 + is only half-full. This single electron is nevertheless enough to lower the potential energy of one mole of hydrogen nuclei pairs by 270 kJ quite enough to make them stick together and behave like a distinct molecular species.
For most elements, the valence shell takes eight electrons to fill. According to the octet rule, an atom is âcompleteâ when its valence shell has eight electrons; incomplete atoms share electrons and in so doing end up with full valence shells.or the carbon dioxide molecule, for example, one carbon atom bonds with two oxygen atoms. Carbon, with four electrons in its valence shell, needs four to reach the octet state. Oxygen, with six outer electrons, needs two.