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16-09-2020
Mathematics

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Three electrons are removed from each of 4 atoms. Write an expression to represent the net change on the charge for the group of atoms.

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16-09-2020

Answer:

The charge of each electron is -1, so the charge of three electrons is -3. Removing something is denoted by a negative sign. The expression that represents the removal of three electrons from each of four atoms is (-3)(-4).

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