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Which of the following ions is a cation?
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2. Atoms & Elements
Ions
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Which type of atoms typically form cations?
A
Noble gas atoms
B
Nonmetal atoms
C
Halogen atoms
D
Metal atoms
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Understand that cations are positively charged ions formed when an atom loses one or more electrons.
Recall that metals tend to have low ionization energies, meaning they lose electrons easily to achieve a stable electron configuration.
Recognize that nonmetals and halogens typically gain electrons to form anions (negatively charged ions), not cations.
Note that noble gases are generally inert and do not form ions under normal conditions because they already have a stable electron configuration.
Conclude that metal atoms typically form cations because they lose electrons to achieve a stable electron arrangement.
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