the triad of lithium, sodium, and potassium reacted vigorously with what other triad? a carbon, nitrogen…

the triad of lithium, sodium, and potassium reacted vigorously with what other triad? a carbon, nitrogen, and oxygen b chlorine, bromine, and iodine c oxygen, sulfur, and selenium d beryllium, magnesium, and calcium
Answer
Brief Explanations:
Lithium, sodium, and potassium are alkali - metals. They react vigorously with oxygen, sulfur, and selenium which are non - metals. These non - metals form compounds with the alkali - metals through ionic bonding.
Answer:
C. oxygen, sulfur, and selenium