Which option is the chloride ion?

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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 option is the chloride ion?

Explanation:
Chloride is chlorine that has gained one electron, giving it a negative charge. In ion notation this is written as Cl-. Gaining one electron completes chlorine’s outer shell, turning it into a stable -1 ion. The other symbols would indicate different charges or species that aren’t the chloride ion (positive Cl+, doubly charged Cl2-, or triply charged Cl3-). The standard chloride ion is Cl-.

Chloride is chlorine that has gained one electron, giving it a negative charge. In ion notation this is written as Cl-. Gaining one electron completes chlorine’s outer shell, turning it into a stable -1 ion. The other symbols would indicate different charges or species that aren’t the chloride ion (positive Cl+, doubly charged Cl2-, or triply charged Cl3-). The standard chloride ion is Cl-.

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