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chemistry questions?

which element has the highest electron affinity? which has the lowest?

which element has the highest ionization energy? which has the lowest?

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  • 1 decade ago
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    Highest Postitive Electron affinity--NEON

    Lowest--Francium

    Lowest ionization--Cesium

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  • 1 decade ago

    Helium has the highest ionization energy while Caesium has the lowest ionization energy.

    Chlorine has the highest electron affinity.

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  • 1 decade ago

    Ionization energy and electron affinity increases as we go from left to right across a row of the periodic table. Ionization energy and electron affinity also increases as we go up a column of the periodic table.

    'He' has the highest energy and electron affinity.

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