$$$ Quiz $$$ Electrons. Who solved the photoelectric effect problem? Einstein.
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Transcript of $$$ Quiz $$$ Electrons. Who solved the photoelectric effect problem? Einstein.
![Page 1: $$$ Quiz $$$ Electrons. Who solved the photoelectric effect problem? Einstein.](https://reader036.fdocuments.net/reader036/viewer/2022062323/5697bf9a1a28abf838c92497/html5/thumbnails/1.jpg)
$$$ Quiz $$$
Electrons
![Page 2: $$$ Quiz $$$ Electrons. Who solved the photoelectric effect problem? Einstein.](https://reader036.fdocuments.net/reader036/viewer/2022062323/5697bf9a1a28abf838c92497/html5/thumbnails/2.jpg)
Who solved the photoelectric effect problem?
Einstein
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Can a electron be considered a wave and a particle? Who stated this?
Yes, DeBroglie
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What is the photelectric effect?
When light shines on a metal, and only ejects electrons at a
threshhold wavelength (or frequency)
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What is Hund’s rule?
Electrons fill up orbitals at same energy level one at a time, before doubling up
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What does the Pauli Exclusion principle state?
Only two electrons per orbital and they must have opposite
spins
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According to the Aufbau principle, how do electrons
enter orbitals?
In the lowest energy orbitals first (ie. 1s, then 2s, etc.)
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What does the Heisenberg Uncertainty principle have to say
about electrons?
You can’t know the position and velocity (speed and direction) of
an electron at the same time
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Which element has the electron configuration
1s22s22p63s23p64s23d104p3?
Arsenic, As
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Can you name a 5A anion (group 15) that has the following electron
configuration1s22s22p63s23p64s23d104p6?
Arsenide, As3-
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What happens when an electron goes from an excited state back
down to its ground state?
A characteristic color is emitted depending on the atom
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Name the diatomic elements.
hydrogen - have nitrogen – no fluorine - fear oxygen - of iodine - ice
chlorine - cold bromine - beer
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Who is mostly responsible for developing the quantum
mechanical model of the atom?
Erwin Schrodinger
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What are the letter symbols for the four orbitals?
s,p,d,f
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What are the maximum number of orbitals in the
s,p,d & f sublevels?
1,3,5,7
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What are the maximum number of electrons in the
s,p,d & f sublevels?
2,6,10,14
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Wavelength (l) = ?
c/ n(Do you know the units for these
three numbers?)
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Energy = ?
h x n(Do you know the units for these
three numbers?)
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What is a photon?
An elementary particle that carries a quantum of light and all other forms of electromagnetic radiation
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Which has a larger frequency, gamma rays or radio waves?
gamma rays
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Which has a larger wavelength, gamma rays or radio waves?
radio waves
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Which has more energy, gamma rays or radio waves?
gamma rays
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