Quantum Numbers

Which of the following sets of quantum numbers (n, l, mₗ, mₛ) is NOT allowed for an electron in an atom?

• n=3, l=2, m_l=−2, m_s=+1/2​

• n=2, l=1, m_l=0, m_s=−1/2​

• n=4, l=3, ml=3, mₛ = +1/2​

• n=, l=2, mₗ = 1, mₛ = +1/2​

Which quantum number determines the energy level of an electron in an atom?

• Principal quantum number (n)
  

• Azimuthal quantum number (l)
  

• Magnetic quantum number (mₗ)
  

• Spin quantum number (mₛ)

How many possible values of mₗ are there for an electron in the p-orbital?

• 1
  

• 2

• 3

• 4

The spin quantum number (mₛ) can have which of the following values?

• -1 or +1
  

• 0 or 1
  

• +1/2​ or −1/2

• 1 or -1

What is the maximum number of electrons that can occupy an orbital?

• 1

• 2

• 3

• 4

Which quantum number cannot be 0?

• Principal quantum number (n)
  

• Azimuthal quantum number (l)
  

• Magnetic quantum number (mₗ)
  

• Spin quantum number (mₛ)

Which set of quantum numbers is incorrect for an electron?

• n= 3, l=1, m_l= −1,

  m_s= +1/2

• n= 2, l= 1, m_l =1,

  m_s= −1/2

• n=1, l=0, m_l=0, m_s=+1/2

• n=2, l=2, m_l=0, m_s=−1/2

What is the maximum number of electrons that can occupy a set of p-orbitals?

• 2

• 4

• 6

• 8

For the n = 4 energy level, what is the maximum possible value of l?

• 1

• 2

• 3

• 4

describes how electrons are distributed among its atomic orbitals

• electron adaptation

• electron configuration

• electron rotation

• elctron evaluation