06a Electron Affinity & Electronegativity

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8 Terms

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What is electron affinity?

Energy change when an atom gains an electron

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What does a large negative electron affinity mean?

Energy is released (easy to add electron)

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What does a large positive electron affinity mean?

Energy is required (hard to add electron)

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How does electron affinity change down a group?

Decreases

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How does electron affinity change across a period?

Increases

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What is electronegativity?

Ability of an atom to attract electrons in a bond

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Who devised the electronegativity scale?

Linus Pauling

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Which element has the highest electronegativity (4.0)?

Fluorine