Question

question 24 (1 point)
cs and ba are ________ and ________, respectively.

1. transition metal, diatomic gas
2. alkali metal and alkaline earth metal
3. halogen and noble metal
4. lanthanide and actinide

Explanation:

Cs (cesium) is an alkali - metal in Group 1 of the periodic table. Ba (barium) is an alkaline earth metal in Group 2 of the periodic table.

Answer:

1. Alkali metal and alkaline earth metal