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Question 1 of 6
1 of 6
Match the following terms to the correct definitions.
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The arrangement of electrons in shells, in an atom or ion.
The highest energy level in an atom, contains electrons.
A particle with a positive charge.
A particle with a negative charge.
electron configuration
outer shell
cation
anion
Electrons are arranged in shells, different shells can hold different maximum numbers of electrons. Ions are formed when atoms gain or lose electrons.