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25 Cards in this Set
- Front
- Back
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Modern Chemistry grew out of ______________. |
Alchemy |
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Dalton's __________ sets out to explain the law of definite proportions, the law of multiple proportions, the law of conversation of mass |
Atomic Theory |
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John Dalton's atomic theory was accepted _________. |
After a long time |
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the number of _____ in an atom is equal to the mass number of protons. |
Nuetrons |
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An ____________ of hydrogen and an atom of carbon are different |
Atom |
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Each electron in an atom is represented by a unique _______ number. |
Quantumm |
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in the p sub level, each orbital holds 1 electron before any holds 2. |
True |
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The ___ sub level holds only 1 electron. |
S |
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Flourine has _____ unpaired electron. |
1 |
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Aluminum has ____ empty orbitals |
2 |
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Magnesium has ____ valence electrons |
2 |
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How many neutrons are present in the P-28 isotope of phosphorous ? |
13 |
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An isotope is analyzed and found to contain 12 protons and 14 neutrons. Name the isotope. |
Magnesium-26 |
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An atom of Barium has electrons in ________ energy levels. |
6 |
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Elements in group _________ have 6 valence electrons. |
16 |
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After 5s sub level, electrons go into the ____ sub level |
4d |
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the d sublevel can hold up to ____ electrons. |
10 |
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The nonreactive elements are all in the ___________ family. |
Noble Gases |
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Valence electrons are found in the _____ sub levels |
S+P |
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The most reactive family are in the _________ family. |
Alkali |
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There are _________ particles in 1 mole. |
6.02x10^23 |
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The molar mass of palladium is _______. |
106.42g |
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The molar volume of a gas at STP equals _______ liters. |
22.4 |
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Standard _________ is 0 degrees. |
Temperature |
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One mole samples of any gas will have the same _______ at the same temperature and pressure. |
Volume |
