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Subscript

usgb/ˈsʌbskrɪpt/Volume
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LampPro Tip 1/3
Differentiate ElementsPlay
Subscripts help distinguish between similar elements or variables in equations. SlideThe oxygen molecule O2 has two oxygen atoms, represented by the subscript '2'.
LampPro Tip 2/3
Sequential ReferencesPlay
In sequences or lists, subscripts are used to reference elements in order. SlideFor a series a1, a2, a3..., the subscript indicates the position in the sequence.
LampPro Tip 3/3
Chemical FormulasPlay
Chemistry uses subscripts to show the number of atoms in a molecule. SlideWater (H2O) has two hydrogen atoms, shown by the subscript '2'.