Solution:
a) Metals include sodium, magnesium, aluminum, and potassium. Halogens include the elements F and Cl. There are two sets of elements in total.
b) Mendeleev’s law of periodicity is represented by the given set.
Solution:
a) Metals include sodium, magnesium, aluminum, and potassium. Halogens include the elements F and Cl. There are two sets of elements in total.
b) Mendeleev’s law of periodicity is represented by the given set.