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23 Cards in this Set
- Front
- Back
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What does atomic number represent in periodic trends? |
Size in diameter |
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Group 8a (18) |
Noble gasses |
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Group 7a (17) |
Halogen Gasses |
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Group 1a (1) |
Alkali Metals |
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Group 2a (2) |
Alkaline earth metals |
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Groups 3 - 12 |
Transition metals |
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F-blocks |
Rare earths |
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4f |
Lanthinides |
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5f |
Actinides |
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How does the Atomic size change as you move towards the right of the periodic table? |
Decreases |
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How does the atomic size change as you move down the periodic table? |
increases |
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what is electron affinity? |
energy released when an atom accepts an additional valence electron |
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how does the electron affinity change while you move down the periodic table? |
Decreases |
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how does the electron affinity change as you move to the right of the periodic table? |
increases |
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Where are the electrons in schrodinger's model for the atom? |
in the node |
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What is an orbital? |
volume of space with a high probability of containing the electron |
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what does the Heisenberg uncertainty principle say? |
we cannot know both the position and momentum velocity of an electron at the same time. |
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how does Heisenberg effect electrons in orbitals |
they have an inverse relationship. as one gets more accurate, the other gets less accurate. |
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what does the uncertainty principle say about Bohr's model |
Bohr's model was too accurate. he knew both the position and the velocity |
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what are the four types of quantum numbers in order of increasing energy level and what are their symbols? |
1) Principle QN "n"; 2) Angular QN "l"; 3) Magnetic QN "ml"; |
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what does the principal QN tell us? |
The energy level of the electron |
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what does the angular QN tell us? |
The type of orbital the electron is probably in |
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what does the magnetic QN tell us? |
Orientation of the orbital in space |
