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Science
Chemistry
Nuclear Energy

Describe the significance of the number of electrons in an atom's highest energy level?

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October 04, 2010 1:54AM

electrons differ in the amount of energy they have and how tightly they are held by the protons in the nucleus. Based on these properties, chemists describe an atom's electrons as belonging to certain energy levels. Usually it is the electrons in the highest energy level of an atom that determine how that atom reacts.