Respuesta :
Answer:
hydrogen, lithium, sodium, potassium, rubidium, cesium, and francium
Explanation:
Any element in the first colon (group 1) of the periodic table is classified as alkali metal
Answer:
hydrogen, lithium, sodium, potassium, rubidium, cesium, and francium
Explanation:
Any element in the first colon (group 1) of the periodic table is classified as alkali metal