Lewis structure for SeCl2 have 2 lone pairs.
In his idea of cubic atoms, Lewis developed the "octet rule." The preference of atoms to have eight electrons in the valence shell is referred to as the "octet rule." Atoms with fewer than eight electrons have a propensity to interact, resulting in the formation of more stable compounds. The most stable state that atoms can achieve through their reactions. The idea of the octet rule, in which atoms share electrons so that each has eight electrons in its outer shell, is the foundation of a Lewis structure. The outer shell of an oxygen atom, for instance, has six electrons. The valence electrons of atoms within a molecule are depicted in diagrams known as Lewis structures, commonly referred to as Lewis dots or electron dot structures.
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