Alkali metals:
– Hydrogen (H)
– Lithium (Li)
– Sodium (Na)
– Potassium (K)
– Rubidium (Rb)
– Casein (Cs)
– Francium (Fr)
Alkali metals:
– Hydrogen (H)
– Lithium (Li)
– Sodium (Na)
– Potassium (K)
– Rubidium (Rb)
– Casein (Cs)
– Francium (Fr)