Chemistry Atomic Bonding

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Ions

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7 Terms

1
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What is an ion?

An atom that has gained or lost electrons (so it has a charge).

2
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Do protons change when forming ions?

No — only electrons change.

3
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If an atom loses electrons, what charge does it get?

Positive (+) charge.

4
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If an atom gains electrons, what charge does it get?

Negative (–) charge.

5
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What is a cation?

A positive ion (loses electrons).

6
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What is an anion?

A negative ion (gains electrons).

7
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What ion does Na form?

Na⁺ (loses 1 electron)