Respuesta :

The   group  one element (alkali  metal) element  that  is  lithium,    sodium,potassium,  Rubidium,Caesium  and  Francium  and   halogen (the  group  17  elements)   that  is  fluorine,   chlorine,bromine,iodine, astatine  are  the  one   which  are  found  in  nature  only  in  compounds.  The  two  families  are  highly  reactive element.

Answer:

Group 2

Explanation:

you must be referring to the groups in the periodic table. Well, the group that fits your question is group 2.

This is the group of alkaline earth metals. These elements have this name because they are usually found on earth. They are quite reactive, but less so than group 1 metals. They are also electropositive and are harder and denser than alkali metals. They are used in metal alloys as is the case for example of Beryllium (Be), in the composition of plaster and marble being the case of calcium (Ca) and in magnesium (Mg) and strontium (Sr) fireworks.

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