Question

What do the elements in these groups have in common? a) alkali metals. b) halogens. c) noble gases.​

Answer 1

Answer:

they are soft, shiny and easy to cut

Explanation:

Answer 2

Answer:

a) all alkali metals have one electron in their outer shell. alkali metals are soft and can be cut with a knife. they react violently with water.

b)these are reactive elements because their atoms have one empty space in their outer shell.Halogens are colored gases and very poisonous.

c)noble gases are famous because they do not react because their outer shell is completely full.

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