Which ion has the symbol Pb2+?

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

Which ion has the symbol Pb2+?

Explanation:
In ions, the little superscript shows the overall electric charge, telling you how many electrons were lost or gained. Pb2+ means lead has lost two electrons, giving a 2+ charge, so this is the lead(II) ion. The other forms would carry different charges: Pb4+ would be lead in a +4 state (lost four electrons), Pb+ would be a +1 state (lost one electron), and Pb0 is neutral elemental lead, not an ion. So Pb2+ is the ion with the 2+ charge.

In ions, the little superscript shows the overall electric charge, telling you how many electrons were lost or gained. Pb2+ means lead has lost two electrons, giving a 2+ charge, so this is the lead(II) ion. The other forms would carry different charges: Pb4+ would be lead in a +4 state (lost four electrons), Pb+ would be a +1 state (lost one electron), and Pb0 is neutral elemental lead, not an ion. So Pb2+ is the ion with the 2+ charge.

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