Question

Distinguish between the elements of group 1 and that of group 17 in modern periodic table​

Answer 1

Answer:

As alkali metals, the Group I elements are non-molecular solids (almost all of them are!). On the other hand, the Group 17 elements are molecular, with discrete molecular boundaries as gases, liquids, or solids. Metals are reducing, and non-metals are oxidizing, and hence the alkali metals form salts with the halogens.

Answer 2

Answer:

group 1 (alkali metal)

- they are highly reactive, univalent (1 valence electron)

- they are soft metals, can be cut through knife.

- they have less electronegativity

- they have high meleting and boiling points

group 17 (halogens)

- they are highly reactive, univalent(7 valence electron)

- they are non-metals.(br is solid at room temp.)

- they have very high electronegativity

- they have low melting and boiling points.