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25 Cards in this Set
- Front
- Back
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Period |
Horizontal |
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Row |
Vertical |
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Physical Property |
Quality or condition of a substance that can be observed or measured without changing the substance's composition |
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Chemical Property |
Ability of a substance to undergo a specific chemical change |
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Solids |
Definite shape and definite volume |
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Liquids |
Definite volume, no definite shape |
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Gas's |
No definite shape or volume |
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Heterogeneous mixture |
Can be separated |
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Homogeneous mixture |
Cannot be separated |
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Kelvin |
Freezing @ 273K; Boiling @ 373K |
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Celsius |
Freezing @ 0 degrees Celsius; Boiling @ 100 degrees Celsius |
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Absolute Zero |
0 on Kelvin scale |
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Protons |
Positive charge; found in the nucleus |
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Neutrons |
No charge (neutral); found in the nucleus |
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Electrons |
Negative charge |
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Isotopes |
Atoms of the same element that have the same atomic number but different atomic masses due to a different number of neutrons |
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Energy Level |
The specific energies an electron in an atom or other system can have |
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Electron Configuration |
The arrangement of electrons of an atom in it's ground state into various orbitals around the nuclei of atoms |
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Number of electrons |
S-2 P-6 D-10 F-14 |
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Aufbau Principle |
Rule that electrons occupy the orbitals of lowest energy first |
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Heisenberg Uncertainty Principle |
It is impossible to know exactly both the velocity and the position of a particle at the same time |
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Photon |
Quantum of light; A discrete bundle of electromagnetic energy that interacts with matter similarly to particles |
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Periodic Trends |
In general, atomic size increases from top to bottom within a group and decreases from left to right across a period |
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Cations |
Any atom or group of atoms with a positive charge |
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Anions |
Any atom or group of atoms with a negative charge |
