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Chem Test #1
Might not be the full test
Question | Answer |
---|---|
Atom Definition | The smallest identifiable unit of an element that retains the properties of the element |
Greeks atom model | - 4 elements: Earth, air, fire, water - Elements composed of tiny indivisible particles (atomos- meaning indivisible) |
John Dalton | Billiard ball - Composed tiny, indivisible, uniform, spherical particles - Atoms of the same element are identical (false) - Compounds have whole number ratios |
Thomson | Plum Pudding Model - Discovered the electron - Electrons uniformly distributed throughout positive material that fills atom |
Rutherford | 1st gold foil experiment - Atom is empty space besides for all of the positive charge and mass in the nucleus |
Mendeleev organization | - Increasing atomic mass - Similar physical & chemical properties placed in horizontal rows |
Modern PT organization | - Increasing atomic number - Elements w/ similar properties in same vertical column |
Props of metals | - Conduct heat and electricity - Most are gray or silver colored - Solids @ room temp - High MP & BP - Lustrous - Malleable - Ductile |
Lustrous | Shiny |
Malleable | Able to be flattened |
Ductile | Able to be stretched into wire |
Props of non metals | - Do not conduct heat and electricity - Variety of colors - All different states of matter - Lower MP & BP - Not lustrous - Not malleable - Not ductile |
Metaloids | Have varying amounts of properties from both metals and nonmetals |
Group 1 name | Alkali Metals |
Group 2 name | Alkaline Earth Metals |
Group 17 name | Halogens |
Group 18 name | Noble gasses |
2 bottom rows | Inner transition metals |
Top bottom row | Lanthanides |
Bottom bottom row | Actinides |
Empirical formula | Simplified ratio of a compound |
Reason for nomenclature | To help understand reactions |
Ionic Compounds | - Binary Ionic-Main Group Metal & Nonmetal - Binary Ionic-Transition Metal & Nonmetal - Ionic Compounds w/ Polyatomic Ions - Repeating arrangement of the ions in the compound |
Molecular Compounds | - 2 nonmetals - noncontinuous, just the given units |
Cations | - Positively charged ions - Groups 1, 2, 13 |
Anions | - Negatively charged ions - Groups 15-17 |
..."ate" | Basis for other variations (0) |
..."ite" | One less oxygen (-1) |
"hypo"... | Two less oxygens (-2) |
"per"... | One more oxygen (+1) |
Adding hydrogen to a polyatomic ion | H has a +1 charge meaning that it will change the charge of the ion (ex: -2 charge will turn to - charge) |