Examlex
The number that indicates the effect of a food on a person's blood glucose level is called the
Valence Shells
Valence shells are the outermost shell of an atom that contains the electrons most likely to be involved in chemical reactions.
Noble Gas
A group of chemical elements with similar properties under standard conditions; they are odorless, colorless, monatomic gases with very low chemical reactivity.
Electron Shell
The grouping of electrons surrounding the nucleus of an atom, where electrons exist in fixed energy levels.
Octet Rule
A chemical rule of thumb that states atoms tend to combine in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
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