The list is very long for Wiki Answers; see a Periodic Table.
Alkali metalsNonmetalsHalogens
The two most reactive groups of elements in the periodic table are the alkali metals and the halogens. Halogens are nonmetals located in group 17 of the periodic table and include elements like fluorine, chlorine, and iodine.
non-metals .... alkali metals....transition metals....alkali earth metals....rare earth metals....other metals....halogens....inert elements
The 4 divisions are Alkali Metals,Transitional Metals, Halogens,Noble Gases .
The main group of elements includes all the elements in columns 1, 2, and 13 through 18 of a wide form Periodic Table. All the other elements are "transition elements", and those in the two horizontal rows at the bottom of a wide form periodic table are also called "inner transition" elements.
Alkali metalsNonmetalsHalogens
Alkali metals, transition metals, halogens or Transition metals, halogens, noble gases or Alkali earth metals, halogens, noble gases
Sometimes these are called the "representative" elements.
The two most reactive groups of elements in the periodic table are the alkali metals and the halogens. Halogens are nonmetals located in group 17 of the periodic table and include elements like fluorine, chlorine, and iodine.
There are actually 10:Alkali MetalsAlkaline Earth MetalsLanthanidesActinidesTransition ElementsPoor MetalsMetalloidsNonmetalsHalogensNoble Gases
The alkali metals, the alkaline earth metals, the transition metals, metalloids, nonmetals, including the halogens and the Nobel gasses.A simplified list including general groups and families of elements.
The classification with 1A, 7A etc. is not recommended by IUPAC and is obsolete.The 1A elements are alkali metals, all solids; the 7A elements are the nonmetals (halogens). Halogens can be gaseous, liquids or solids at room temperature.
The most active metals are alkali metals.The most active nonmetals are halogens.
non-metals .... alkali metals....transition metals....alkali earth metals....rare earth metals....other metals....halogens....inert elements
The main group elements, also known as the representative elements, are found in Groups 1, 2, and 13-18 on the periodic table. This includes elements like hydrogen, sodium, magnesium, carbon, oxygen, and neon. Elements in these groups have valence electrons in the s and p orbitals.
The 4 divisions are Alkali Metals,Transitional Metals, Halogens,Noble Gases .
Well, several are, and from left to right. Alkali metals Alkaline earth metals. Transition metals. Metaloids. Nonmetals. Halogens. Nobel gasses.