Answer: I think three red and one white.
Hope this helps.
Explanation:
<span>7 electrons in each outer shell
Group 17
Most reactive
Fluorine, Chlorine, Bromine, Iodine, Astatine
Alkali Metals:
1 electron is each outer shell
Group 1
Also reactive, but not as much as the halogens
Lithium, Sodium, Potassium, Rubidium, Cesium, Francium </span>
The only one that makes sense is size. because there could be other minerals the same size. so size wouldn't be a property to help identify
An area of land or water set aside for the protection of an ecosystem is preserve
