Question

i) Find out the properties & uses of group 17 & group 18 elements​

Answer 1

Most of group 17 elements are highly reactive gases at standard temperature and pressure. They form salts when exposed to metals. Physical properties of Astatine are not certain because the heat of its own radioactive decay vaporizes any macroscopic sample. It is expected to be a solid.

Most of group 17 elements are highly reactive gases at standard temperature and pressure. They form salts when exposed to metals. Physical properties of Astatine are not certain because the heat of its own radioactive decay vaporizes any macroscopic sample. It is expected to be a solid.Group 18 elements are inert gases at standard temperature and pressure. They do not form compounds at standard temperature and pressure. Heavier members of group 18 can be made to form a few compounds under extremes of temperature and pressure.

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Answer 2

Answer:

Most of group 17 elements are highly reactive gases at standard temperature and pressure. They form salts when exposed to metals. Physical properties of Astatine are not certain because the heat of its own radioactive decay vaporizes any macroscopic sample. It is expected to be a solid.

Group 18 elements are inert gases at standard temperature and pressure. They do not form compounds at standard temperature and pressure. Heavier members of group 18 can be made to form a few compounds under extremes of temperature and pressure.

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Explanation:

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