Solids, Liquids, and gases.
Solids, Liquids, and gases.
There are three types of elements: metals, metalloids, and nonmetals. Most elements are metals.
inert gases
The transition elements are typically divided into three groups: the first transition series, the second transition series, and the third transition series. These groups are based on the position of the elements in the periodic table.
Metal, Non Metal, Noble Gas
Newland, Moseley, , Dobereiner, Mendeleeff...
The three groups of the periodic table that contain the most elements classified as metalloids are: Group 14 (Carbon group), Group 15 (Nitrogen group), and Group 16 (Oxygen group). These groups have elements such as silicon, germanium, arsenic, antimony, tellurium, and polonium that exhibit properties of both metals and nonmetals.
Stratification has three elements. These three elements are property, power, and prestige. It can be predicted what part a person plays in a social hierarchy based on whether they have these elements and how they portray them.
because they have similar properties to the other elements in their groups
A German chemist Dobernier observed relationship between atomic masses of several groups of three elements called traids.In these groups the central or middle element had atomic mass average to the other two elements.
Main group elements have elements from groups 1 and 2, except hydrogen and groups 13 to 18. Main group elements are elements in groups who's lightest elements are shown by helium, lithium, boron, beryllium, carbon, nitrogen, oxygen, and fluorine.
There are 18 groups in the periodic table of elements.