Gases, Solids, and Liquids.
There is also the addition of Plasma, but that is in some slightly more complex chemistry.
Which of these is not of the three main classes of elements?Read more: Which_of_these_is_not_of_the_three_main_classes_of_elements
Three main classes are:MetalsNon metalsTransition elementsThey are present in periodic table.
metalsnon metalssemi metals
Carbon, hydrogen, and oxygen are the three main elements that make up living things.
Alkali, alkaline earth metals, and nonmetals.
The three main parts of an element are protons, neutrons, and electrons.
There are three main elements of positive interaction. One of these elements is a positive and happy demeanor when greeting someone.
bivalves gastropods cephalopods
Turbellaria , Trematoda and cestoda
you find it
Potassium
igneous, sedimentary, and metamorphic