Multiple Choice
What type of ion has lost an electron and therefore carries a positive charge?
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2. Atoms & Elements
Ions
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Which of the following best describes how a negative ion (anion) is formed?
A
An atom loses one or more electrons.
B
An atom loses one or more neutrons.
C
An atom gains one or more electrons.
D
An atom gains one or more protons.
Verified step by step guidance1
Understand that ions are atoms or molecules that have gained or lost electrons, resulting in a net electric charge.
Recall that a negative ion, or anion, has more electrons than protons, giving it a net negative charge.
Recognize that gaining electrons increases the negative charge of an atom, forming an anion.
Note that losing electrons would create a positive ion (cation), not a negative ion.
Conclude that the correct description of an anion formation is: an atom gains one or more electrons.
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