Three main classes are:
Metals
Non metals
Transition elements
They are present in Periodic Table.
metalsnon metalssemi metals
The three broad classes of elements found the periodic table are metals, non metals, and metalloids.
Metals, nonmetals, and metalloids.
HydrogenHeliumLithium
Because those elements were not known when he formulated his periodic table.
No it is the other way around. The majority of elements in the periodic table are metals.
Si, As and Te
No, more than three-fourths of the elements are metals. Love, Grahamcracker
No, the periodic table only lists elements. Sulfuric acid (H2SO4) is a compound of three elements: hydrogen, sulfur, and oxygen.
The three main categories of elements on the periodic table are metals, metalloids, and nonmetals.
i dnt knw
All of the elements in the left-most period of the periodic table or alkali elements. Such as Li and Na.