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Lernmaterialien für Chemistry an der Karabuk University

Greife auf kostenlose Karteikarten, Zusammenfassungen, Übungsaufgaben und Altklausuren für deinen Chemistry Kurs an der Karabuk University zu.

TESTE DEIN WISSEN
What’s the frequency (ν) unit?
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TESTE DEIN WISSEN
hertz (hz, sec^-1 )
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TESTE DEIN WISSEN
What’s the symbol of Planck’s constant (6.626 x 10^-34? 
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TESTE DEIN WISSEN
h
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TESTE DEIN WISSEN
What is the energy equation? 
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TESTE DEIN WISSEN
E = hν
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TESTE DEIN WISSEN
Describe Ernest Rutherford’s model in short. 
 
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TESTE DEIN WISSEN
- Discovered dense positive piece at the center of the atom- “nucleus”.
- Electrons would surround and move around it, like planets around the sun.
- Atom is mostly empty space.

- It did not explain the chemical properties of the elements – a better description of the electron behavior was needed.
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TESTE DEIN WISSEN

The maximum number of electrons that can fit in an energy level is? 

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TESTE DEIN WISSEN
2n^2
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TESTE DEIN WISSEN

How many e- in levels 2,3 and 4?

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TESTE DEIN WISSEN

8,18,32

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TESTE DEIN WISSEN
According to Niels Bohr’s Model Why don’t the electrons fall into the nucleus?

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TESTE DEIN WISSEN
They move like planets around the sun, In specific circular paths, or orbits, at different levels, and an amount of fixed energy separates one level from another.
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TESTE DEIN WISSEN
The quantum mechanical model is a ___________.
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TESTE DEIN WISSEN
mathematical solution  
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TESTE DEIN WISSEN
What’s the energy unit? 
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TESTE DEIN WISSEN
Joules (kg·m2/s2)
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TESTE DEIN WISSEN
Describe the quantum mechanical model in short.

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TESTE DEIN WISSEN
- Energy is “quantized” - It comes in chunks.
- A quantum is the amount of energy needed to move from one energy level to another.
- Since the energy of an atom is never “in between” there must be a quantum leap in energy.
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TESTE DEIN WISSEN
According to Bohr’s model, what is the definition of quantum of energy? 

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TESTE DEIN WISSEN
A quantum of energy is the amount of energy required to move an electron from one energy level to another.
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TESTE DEIN WISSEN
According to Bohr’s model, can electrons exist between energy levels? 


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TESTE DEIN WISSEN
No. Electrons cannot exist between energy levels, just like you can’t stand between rungs on a ladder.
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  • 407 Karteikarten
  • 45 Studierende
  • 1 Lernmaterialien

Beispielhafte Karteikarten für deinen Chemistry Kurs an der Karabuk University - von Kommilitonen auf StudySmarter erstellt!

Q:
What’s the frequency (ν) unit?
A:
hertz (hz, sec^-1 )
Q:
What’s the symbol of Planck’s constant (6.626 x 10^-34? 
A:
h
Q:
What is the energy equation? 
A:
E = hν
Q:
Describe Ernest Rutherford’s model in short. 
 
A:
- Discovered dense positive piece at the center of the atom- “nucleus”.
- Electrons would surround and move around it, like planets around the sun.
- Atom is mostly empty space.

- It did not explain the chemical properties of the elements – a better description of the electron behavior was needed.
Q:

The maximum number of electrons that can fit in an energy level is? 

A:
2n^2
Mehr Karteikarten anzeigen
Q:

How many e- in levels 2,3 and 4?

A:

8,18,32

Q:
According to Niels Bohr’s Model Why don’t the electrons fall into the nucleus?

A:
They move like planets around the sun, In specific circular paths, or orbits, at different levels, and an amount of fixed energy separates one level from another.
Q:
The quantum mechanical model is a ___________.
A:
mathematical solution  
Q:
What’s the energy unit? 
A:
Joules (kg·m2/s2)
Q:
Describe the quantum mechanical model in short.

A:
- Energy is “quantized” - It comes in chunks.
- A quantum is the amount of energy needed to move from one energy level to another.
- Since the energy of an atom is never “in between” there must be a quantum leap in energy.
Q:
According to Bohr’s model, what is the definition of quantum of energy? 

A:
A quantum of energy is the amount of energy required to move an electron from one energy level to another.
Q:
According to Bohr’s model, can electrons exist between energy levels? 


A:
No. Electrons cannot exist between energy levels, just like you can’t stand between rungs on a ladder.
Chemistry

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