Multiple Choice
What is the charge of a magnesium ion (Mg^{2+})?
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2. Atoms & Elements
Ions
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Which process leads to the formation of ions?
A
Atoms undergo nuclear fission
B
Atoms combine to form molecules
C
Atoms gain or lose protons
D
Atoms gain or lose electrons
Verified step by step guidance1
Understand that ions are charged particles formed when atoms gain or lose electrons, which changes their net electrical charge.
Recognize that nuclear fission involves splitting the nucleus of an atom and does not directly create ions by changing electron numbers.
Know that when atoms combine to form molecules, they share or transfer electrons but the process itself is about bonding, not necessarily ion formation.
Recall that gaining or losing protons changes the element itself, not just the charge, so this is not the typical way ions form.
Conclude that the process leading to ion formation is when atoms gain or lose electrons, resulting in positively or negatively charged ions.
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