click below
click below
Normal Size Small Size show me how
Periodic Table
Term | Definition |
---|---|
Periodic Law | Properties of the elements are periodic functions of their atomic number |
Atomic Radius | Size of atoms |
Ionization Energy | Energy required to remove one electron from a neutral atom |
Electronegativity | Measure of the tendency of an atom to attract electrons |
Periodic Table | Table of chemical elements arranged by atomic number |
Period | Name of a horizontal row |
Group | Vertical column of elements |
Metals | Elements that form cations when in a solution |
Nonmetals | Elements without the characteristics of metals |
Metalloids | Elements with properties of metals and nonmetals |
Alkali metals | Li, Na, K, Rb, Cs, Fr |
Alkaline Earth Metals | Be, Mg, Ca, Sr, Ba, Ra |
Halogens | Fl, Cl, Br, I, As |
Noble Gases | He, Ne, Ar, Kr, Xe, Rn |
Representative Elements | First 2 families and last 6 families |
Transition Metals | Middle 11 families |
Inner Transition metals | 2 rows below the table |
Ion | An atom with an electric charge |
Ionic Compound | A chemical compound comprising ions held together by electrostatic forces |
Covalent Bond | Chemical bond that involves the sharing of electron pairs between atoms |
Polyatomic Ion | (Molecular Ion) Charged chemical ion composed of 2 or more atoms covalently bonded or of metal complex |