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7 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Isotope |
Atoms that share a atomic number but have different mass numbers (different number of neutrons) |
nickel-58 vs. nickel-60 |
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Atomic number (Z) |
Equal to the number of protons in an atom of that element. Denoted on top of the element in the periodic table |
Unique for each element |
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Mass number (A) |
The sum of the protons and neutrons in the atoms nucleus |
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Atomic weight |
The weighted average of the different isotopes of an element, taking into account the relative abundance of all naturally occurring isotopes |
Appears on the periodic table |
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Atomic mass |
The mass of a given isotope of a element. Closely related to mass number |
A particular isotope of carbon-12 has 12 amu |
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Orbital |
A region of electron density around an atom or molecule containing no more than two electrons of opposite spin |
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Heisenberg Uncertainty principle |
The concept that states it is impossible to determine both the momentum and position of an electron simultaneously with perfect accuracy |
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