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25 Cards in this Set
- Front
- Back
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Symbol Mass # Charge Neutrons- Electrons- Protons- |
Symbol Mass # Charge
Neutrons- n0 1 0 Electrons- e- 0 1- Protons- p+ 1 1+ |
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Elements in group 16 have __ valence electrons |
6 |
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The principle quantum # represents the main energy level of an electron and is the same as an elements __ on the periodic table |
period |
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Bromine has electrons in how many energy levels? |
4 |
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Nitrogen has how many valence electrons? |
5 |
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Na^25 has a atom of how many neutrons? |
14 |
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Tin is in the _______ family. |
P-block metal |
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After the 4d sublevel, electrons go into the _____ sublevel. |
5p |
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Being able to predict the properties of undiscovered elements was the accomplishment of _____________'s version of the periodic table |
Mendeleev |
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Arsenic is in the ______ family. |
metalloids |
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Iron, copper, gold, and silver are in the _____ family. |
transition metals |
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The standard temp. is? |
0 |
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Molar volume at STP equals ____. |
22.4 |
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to change moles to grams multiply by ______. |
Molarmass/1mole |
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One mole samples of any gas will have the same _____ at the same temperature and pressure. |
Volume |
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The mass of 1 mole of potassium equals ____. |
39.098g |
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each _____ is represented by a unique quantum number. |
electron |
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The d sublevel holds how many orbitals? |
5 |
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after 2s electrons go into what sublevel? |
2p |
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the p sublevel has how many orbitals? |
3 |
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Neon is in the ___ family. |
Noble gases |
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All of the noble gases are in what group? |
18 |
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the d sublevel can hold how many electrons? |
10 |
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Nitrogen forms ____. |
Anions |
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Lead forms ____. |
Cations |
