Respuesta :
Answer:
Group 2
Explanation:
Strontium (Sr), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table.
Hope this helps
Answer:
Group 2
Explanation:
Strontium (Sr), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table.
Hope this helps