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QuestionChemistry

What is the charge of copper ions in water solutions?
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Answer

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Step 1:
I'll solve this problem step by step:

Step 2:
: Identify the Copper Ion

Copper typically forms two common ions in aqueous solutions: - Copper(I) ion: Cu⁺ - Copper(II) ion: Cu²⁺

Step 3:
: Determine the Most Common Oxidation State

In most water solutions, copper forms the Cu²⁺ (copper(II)) ion. This is the more stable and prevalent form of copper in aqueous environments.

Step 4:
: Explain the Charge

The Cu²⁺ ion has a charge of + 2, which means it has lost two electrons from its neutral atomic state.

Step 5:
: Verify the Oxidation State

- Neutral copper atom has electron configuration: $$[Ar] 3d^{10} 4s^{1}
- When forming Cu²⁺, it loses two electrons: [Ar] 3d^{9}

Final Answer

In water solutions, copper ions typically have a charge of + 2 (Cu²⁺), forming the copper(II) ion.