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Fluorine and iodine are in the same group of the periodic table. Explain why at room temperature, fluorine is a gas while iodine is a solid.

Chemistry

ScanSolve AI Answer

Fluorine na Iodine zote ni molekuli zisizo na ncha. Nguvu za kivutio kati ya molekuli hizi ni nguvu za utawanyiko za London (London dispersion forces). Nguvu hizi huongezeka kadri ukubwa wa atomi na idadi ya elektroni inavyoongezeka.

Fluorine ina atomi ndogo na elektroni chache kuliko Iodine. Hivyo, nguvu za utawanyiko za London katika fluorine ni dhaifu sana, na kuifanya kuwa gesi kwenye joto la kawaida. Kwa upande mwingine, Iodine ina atomi kubwa na elektroni nyingi, hivyo ina nguvu za utawanyiko za London zenye nguvu zaidi, na kuifanya kuwa imara (solid) kwenye joto la kawaida.

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