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

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**Which is NOT a possible quantum number?**

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?**

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?**

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?**

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?**

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?**

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?**

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?**

a) principal number

b) spin number

c) magnetic number

d) subshell number

**Which of the following is true?**

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**

a) 2

b) 6

c) 8

d) 10

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