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Which of the following ions is positively charged and is responsible for making a solution acidic?
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2. Atoms & Elements
Ions
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A positive ion forms when an atom ______.
A
gains one or more electrons
B
loses one or more neutrons
C
loses one or more electrons
D
gains one or more protons
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Understand that ions are charged particles formed when atoms gain or lose electrons.
Recall that electrons carry a negative charge, so gaining electrons makes an atom negatively charged (an anion).
Recognize that losing electrons removes negative charge, resulting in a positively charged ion (a cation).
Note that protons and neutrons are located in the nucleus and do not change during ion formation; changing protons would change the element itself.
Therefore, a positive ion forms when an atom loses one or more electrons.
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