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IPC Unit 4/5 CBA Rev
| Question | Answer |
|---|---|
| Noble gas | Any element found in Group 8A /18. Have full valence shells. Stable. Don't react. |
| Reactivity | How likely an atom is to react with another |
| Metallic character | Increases as you travel to the bottom left of the periodic table. |
| Non-metallic character | Increases as you travel to the top right of the periodic table. |
| Atomic radius | Increases as you travel to the bottom left of the periodic table. |
| Ionization energy and electronegativity | Increases as you travel to the top right of the periodic table. |
| Octet Rule | All atoms want 8 valence electrons in their outermost shell to be happy and considered stable. |
| Chemical bond | Connection created through a chemical reaction that holds atoms together |
| Valence electron | Electron found in an atom's outermost shell. Used to determine reactivity. Either gain or lose valence electrons in chemical reactions. |
| Balanced Equation | An equation with the proper coefficients in place to make the number of atoms of each element on the reactant side equal to the number of atoms of each element on the product side of the equation. |
| Law of Conservation of Mass | Law stating mass cannot be created destroyed. Because of this, the grams of reactants has to equal the grams of products. |
| Coefficient | Big # in front. Impacts all elements touching it. |
| Subscript | Small letter following an elemental symbol tell you the number of atoms present in the reaction. |
| Reactant | What goes INTO a reaction. |
| Product | What comes OUT of a reaction. |