Metallic bonding — practice question

Copper wire is used to close an electrical circuit. What takes place 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.