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Glossary of Element Groups

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On the periodic table, what are classified as nonmetals?
Nonmetals are anything to the right of the stair-step line.
Noble Gases (VIIIA)
Helium (He)
Neon (Ne)
Argon (Ar)
Krypton (Kr)
Xenon (Xe)
Radon (Rn)
Halogens (VIIA)
Fluorine (F)
Chlorine (Cl)
Bromine (Br)
Iodine (I)
Astatine (At)
What are diatomic elements?
Elements composed of molecules that contain two like atoms.
Name the Diatomic Elements
H2
N2
O2
F2
Cl2
Br2
I2
Alkali Metals (IA)
Hydrogen (H)
Lithium (Li)
Sodium (Na)
Potassium (K)
Rubidium (Rb)
Cesium (Cs)
Francium (Fr)
On the periodic table what are the Metalliods?
Any element that lies on the stair-step line.
Chalcogens (VIA)
Oxygen (O)
Sulfur (S)
Selenium (Se)
Tellurium (Te)
Polonium (Po)
On the periodic table, what are classified as metals?
Metals are to the left of the stair-step line.
Alkali Earth Metals (IIA)
Beryllium (Be)
Magnesium (Mg)
Calcium (Ca)
Strontium (Sr)
Barium (Ba)
Radium (Ra)

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