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Questions and Answers
Which of the following best defines ions?
Which of the following best defines ions?
- Atoms that only carry a positive charge
- Atoms with no charge
- Atoms that only carry a negative charge
- Neutral atoms with a positive or negative charge (correct)
What happens when an atom gains an electron?
What happens when an atom gains an electron?
- It disintegrates
- It becomes a positively charged ion
- It becomes a negatively charged ion (correct)
- It remains neutral
What type of charge do cations have?
What type of charge do cations have?
- Negative
- Positive (correct)
- Variable
- Neutral
What is characteristic of anions?
What is characteristic of anions?
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Study Notes
Ions
- Ions are atoms that have gained or lost electrons, resulting in a net electrical charge.
Gaining an Electron
- When an atom gains an electron, it becomes negatively charged.
- This is because the atom now has more electrons (negative charge) than protons (positive charge).
Cations
- Cations are positively charged ions.
- They have lost one or more electrons, resulting in a greater number of protons than electrons.
Anions
- Anions are negatively charged ions.
- They have gained one or more electrons, resulting in a greater number of electrons than protons.
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