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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 |