Term
According to the Quantum Mechanics model of the atom, the electron is... |
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Definition
A 3-dimensional wave surrounding the nucleus of an atom. The electrons are in fixed energy states and can move about the nucleus without radiating away their energy. |
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Term
Principle Quantum Number (n) |
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Definition
Indicates the average distance that an electron is located from the nucleus of the atom. |
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Term
What is the maximum number of electrons possible in any given energy level where n=the energy level equal to? |
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Orbital Quantum Number (l) |
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Indiactes the shape of the path in which electrons move. These paths are called sublevels. |
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Where are electrons placed in a given energy sublevel? |
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Definition
The lowest energy sublevel first. |
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Magnetic Quantum Number (ml) |
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Indicates the direction and space of the path of a pair of electrons. This direction is called an orbital. |
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A three-dimensional space about the nucleus in which electrons of a given energy are likely to be found. |
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The maximum number of orbitals in a given energy level is equal to... |
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Indicates the spin or rotation of the electron on its axis. |
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Term
Pauli's Exculsion Principle |
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Definition
States that no more than two electrons can occupy the same orbital in an atom and these two electrons must have opposite spins. |
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Two electrons in the same orbital with opposite spins. |
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The electrons in the outermost energy level of the atom. |
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What is the most important part of the electron configuration? Explain. |
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Definition
The valence electrons are the most important part of the electron configuration. The number and arrangement of the valence electrons determine the chemical properties of an element. |
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The entire electron configuration excluding the valence electrons. |
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The lowest energy state of an atom. The atom's most stable state. |
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The method of studying substances that are exposed to some sort of continous exciting energy. |
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Term
What causes the bright light spectrum? |
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Definition
If an outside force causes an electron to change orbitals, energy is either given off or absorbed by definate units called Quanta. This change produces the bright light spectrum of the substance. |
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What is true about spectrums of different substances? |
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What is found through studying the spectrum? |
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The energy diagram for the location of the electrons. |
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A unique set of wave-lengths absorbed by a substance. |
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When placing electrons in a sublevel that has more than one orbital, one electron of the same spin is placed in each orbital before doubling up. |
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Electrons are placed one at a time in the lowest energy position. |
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