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Subscripts and superscripts in chemistry

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What does the superscript 2+ mean in ca2+?

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If the superscript appears on the top left of the symbol, it represents the mass number of the element. The plus or minus sign and the number indicate the nature and the quantity of electrical charge present on the ion. Superscripts are numbers with a plus or minus sign at the top right of the formula. What do the little numbers subscript mean in the different molecules? If there is more than one atom of a specific kind, the number is written as a subscript following the atom. If there is only one atom, no number is written. The number of atoms of each kind is indicated by a subscript following the atom. What do the small subscript numbers represent in a chemical formula?

This is also known as a “power” number: We can also write “four cubed” as 43. The most common is to show an exponent (i.e., repeated multiplication of a number by itself, such as squaring or cubing a number). Superscript has several uses in math and science.

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