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Concepts
Term | Definition |
---|---|
Atomic Number | The number of protons (positive charge) in the nucleus of an atom, determining chemical properties and an elements place in the periodic table. |
Atomic Weight | An atom's atomic mass relative to mass of a Carbon atom (Atomic Mass of 12) |
Electron Affinity | An atom's likelihood of gaining an electron |
Electronnegativity | The tendency of an atom to attract electrons to it'self. |
Atomic Radius | The measure from an atom's nucleus to the boundary of it's electron cloud (An atom's size) |
Metallic Character | The level of a metal's re-activity. (ability to react) |
Types of chemical bonds | Ionic Bonds accure when an atom accepts or donates one or more of it's valence electrons to form a bond. Covalent bonds take place when two atoms share valence electrons. |
Valence Electrons | The electron's in an atom's outer shell. (used in the creation of chemical bonds) |
Ionization Energy | The amount energy needed to remove an electron from an atom. |
Melting Point | The temperature at witch a solid changes to a liquid state |
Number of bonds Formed | Group 3A containing Boron, forms 3 bonds. Group 4A containing Carbon forms 4 bonds. Group 5A containing Nitrogen forms 3 bonds. Group 6A containing Oxygen forms 2 bonds. Group 7A containing Fluorine forms 1 bond |