Question

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As we move right to left the atomic size______

Halogen combines with alkali metal to form______colour halides.​

Answer 1

Explanation:

As we move right to left the atomic size___decreases___

Halogen combines with alkali metal to form____always ionic bond__colour halides.

Answer 2

1. As we move right to left the atomic size decreases.
2. Halogen combines with alkali metal to ---form ionicbond colour halides.

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'->Exposing an alkali metal to a halogen will cause an extremely exothermic reaction that results in an ionic salt. Almost every salt of an alkali metal is highly soluble in water. They form conducting solutions, proving their ionic nature.