PLEASE HELP ME IM IN DIRE NEED OF ASSISTANCE. Describe the properties of alkaline earth metals. Based on their electronic arrangement, explain whether they can exist alone in nature.

Alkaline Earth Metals are the 2nd Group of Metals on the Periodic Table.

Explanation:

Characteristics:

- Shiny

- Reactive

- Low melting and boiling points

- Low density

- 2 valence electrons

Alkaline Earth Metals cannot be found alone in nature since they are highly reactable (If you've ever thrown barium into a lake, it would cause a massive explosion).

describe matter a earth

answersilicon (si); oxygen (o);