Chemistry · May / June 2016 · Paper 11 · Question 9
5070Metallic bonding
Copper wire is used to complete an electrical circuit. [circuit diagram: copper wire, lamp] What happens in the copper wire?
- AElectrons move along the wire to the negative terminal. Positive ions stay in position.
- BElectrons move along the wire to the positive terminal. Positive ions move to the negative terminal.
- CElectrons move along the wire to the positive terminal. Positive ions stay in position.
- DNegative ions move along the wire to the positive terminal. Positive ions move to the negative terminal.
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Correct answer: C. Electrons move along the wire to the positive terminal. Positive ions stay in position.
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