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AP CHP 2
Chemical Bonds
Reactive | Elements with unfilled valence shells |
How do elements become stable | by gaining or losing e- and filling the valence shell |
Inert | Elements without active chemical properties(valence shells already full) |
Molecule | two or more atoms that are the same or different Ex: O2 or H2O |
Molecular Formula | how molecules are written H2O - 2 hydrogen 1 oxygen |
Compound | two or more different atoms bonded together ex CO2 |
Molecular weight of a compound | Sum of all the atomic weights of its component atoms |
Bond | Weak or strong electrical attraction that holds atoms in the same vicinity |
3 Bonds | Ionic, Covalent, Hydrogen |
Ionic Bonds | Usually p+ and e- are equal, atom is electrically neutral |