Question

The alkali metals are all grouped together on the periodic table. All of the following explain this grouping except

They are all highly reactive.
They have one valence electron.
They occur in nature as pure elements.
Many are essential to some life functions.

Answer 1

i think the last one

Answer 2

its second one.

Answer 3

Alkali metals found in group 1 metals are highly reactive.These elements are all much too active to exist in nature in their native state. so i go with the 3rd statement.
Some are essential to our lives for example table salt

Answer 4

Yes @Abmon98 is correct, alkali elements are group 1 elements like Li, Na etc. These have a general electronic configuration of nS\(^1\). These are highly reactive and henece are not found in free form in nature.

Answer 5

Thank you all!!

Answer 6

your most welcome :)