Plural of bivalency; multiple instances of having two values or chemical bonds.
Regular plural formation of 'bivalency' using the '-ies' suffix. Derives from the same Latin roots as bivalence: 'bi-' (two) + 'valency' (combining power).
In chemistry, elements can show multiple bivalencies at different times—carbon can bond differently in different compounds, making it incredibly versatile. This variability is one reason carbon is the basis of all living things!
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