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Which of the following ions does NOT have a noble gas electron configuration in its ground state?
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2. Atoms & Elements
Ions
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Which type of atoms typically form negative ions (anions)?
A
Metal atoms
B
Transition metal atoms
C
Noble gas atoms
D
Nonmetal atoms
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Understand that ions are atoms or molecules that have gained or lost electrons, resulting in a net charge.
Recall that atoms tend to gain or lose electrons to achieve a stable electron configuration, often resembling the nearest noble gas configuration.
Recognize that metal atoms typically lose electrons to form positive ions (cations), while nonmetal atoms tend to gain electrons to form negative ions (anions).
Note that transition metals can form cations with various charges but rarely form anions.
Conclude that nonmetal atoms, which have higher electronegativities and are closer to filling their valence shells, typically form negative ions (anions).
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