Examlex
This particular type of category,unlike other types of categories,is flexible and can change over time.
Octet Rule
A chemical rule of thumb that atoms of main-group elements tend to combine in such a way that each atom has eight electrons in its valence shell, giving it the same electron configuration as a noble gas.
Isoelectronic
Describing atoms, ions, or molecules that have the same number of electrons and thus similar electron configurations.
Octet Rule
A chemical rule of thumb that reflects the observation that atoms of main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell.
Lewis Dot Structure
A diagram that represents the valence electrons of atoms within a molecule, showing the bonding between atoms as well as lone pairs of electrons.
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