# Quantum Number Test: Question Preview (ID: 4179)

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Which is NOT a possible quantum number? |
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a) 1,0,0,1/2 | b) 1,1,0,1/2 | c) 1,0,0,-1/2 | d) 2,0,0,1/2 | |

Which is NOT a possible quantum number? |
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a) 3,0,0,1/2 | b) 3,1,0,1/2 | c) 3,1,1,-1/2 | d) 3,1,-1,-1/2 | |

Which could be quantum number of valence electron of Al? |
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a) 3,0,0,1/2 | b) 3,0,0,-1/2 | c) 2,1,1,1/2 | d) 3,1,-1,-1/2 | |

Which could be quantum number of valence electron of Fe? |
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a) 3,2,1,1/2 | b) 3,1,0,-1/2 | c) 3,0,0,1/2 | d) 3,0,1,-1/2 | |

What is Pauly Exclusion? |
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a) electrons first fill themselves up in parallel in all subshells before pairing up | b) one electron spins up and the other spins down | c) high energy level starts first | d) low energy level starts first | |

If a certain light has a wavelength of 432 nm, what is the frequency of that light wave? |
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a) 3.00x10^14 Hz | b) 4.20x10^14 Hz | c) 4.23x10^14 Hz | d) 6.94x10^14 Hz | |

If a certain light has a wavelength of 400 nm, what is the the energy emitted by light? |
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a) 2.12x10^-19 J | b) 3.50x10^-19 J | c) 4.97x10^-19 J | d) 6.54x10^-19 J | |

What is n in quantum number? |
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a) principal number | b) spin number | c) magnetic number | d) subshell number | |

Which of the following is true? |
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a) The speed of light increases when quantum number increases | b) The speed of light increases when the frequency of light increases | c) The speed of light decreases when velocity of the light increases | d) The speed of light is constant | |

Calculate the maximum number of electrons that can occupy the levels when n = 2 |
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a) 2 | b) 6 | c) 8 | d) 10 | |

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