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30-09-2021
Chemistry

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The Atomic number of elements X and Yare 9 and 11 respectively. Which one of the following properties is shown by the when X combine with 7? 3. g. It is a non-conductor of electricity It has a high melting point . c. It is insoluble in water. temperature di It is gas at

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Аноним Аноним

30-09-2021

Answer:

It has a high melting point.

Explanation:

Atomic no 11 means its sodium.
Atomic no 9 means its fluorine
Hence the compound will be

[tex]\\ \sf\longmapsto NaF[/tex]

It will be a ionic compound so it has high melting and boiling points

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