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Questions and Answers
What type of ion is formed when an atom loses electrons?
What type of ion is formed when an atom loses electrons?
- Cation (correct)
- Radical
- Neutral atom
- Anion
Which statement correctly describes the relationship between cations and anions?
Which statement correctly describes the relationship between cations and anions?
- They are both neutral.
- They repel each other.
- They attract each other. (correct)
- They bind to form neutral atoms.
What is required for a compound to conduct electricity?
What is required for a compound to conduct electricity?
- Moving ions. (correct)
- Static electrons.
- Presence of only anions.
- Presence of only cations.
How is a negative ion formed?
How is a negative ion formed?
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To achieve a zero total charge in a compound, what must be true about cations and anions?
To achieve a zero total charge in a compound, what must be true about cations and anions?
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Study Notes
Ions
- Ions are atoms with a charge.
- Cations are positively charged ions that have more protons than electrons.
- Anions are negatively charged ions that have more electrons than protons.
Formation of Ions
- Cations are formed when atoms lose electrons.
- Anions are formed when atoms gain electrons.
Attraction of Ions
- Oppositely charged ions attract each other.
- Cations and anions attract because of this.
Electrical Conductivity of Ions
- Moving ions can conduct electricity.
- Compounds must have no total charge to be stable.
- To achieve this, compounds balance their cations and anions to have a net charge of zero.
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