Quiz 2 - EC, LS, QN, PB

According to the octet rule most elements need _______ valence electrons.

• 2

• 6

• 8

• 10

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A

• B

• C

• D

Phosphorus has ___ valence electrons.

It is the quantum number that describes the energy of an orbital and its atomic size.

• Azimuthal Quantum Number

• Spin Quantum Number

• Principal Quantum Number

• Magnetic Quantum Number

______ is the quantum number that describes the orientation of the orbital in space and can have a value of -ℓ to +ℓ. (all small letters)

What is the maximum allowable number of electrons that a d orbital can hold?

• 2

• 6

• 10

• 14

What is the set of quantum numbers of the last electron of Boron, ₅B¹¹.

• 2,0,0,1/2

• 2,1,1,1/2

• 2,0,0,-1/2

• 2,1,-1,1/2

How many electrons can have the following set of quantum numbers, 6,0,0,1/2?

• 2

• 4

• 3

• 1

The ground state electron configuration describes the distribution of electrons in an atom at its:

• highest energy level

• 
  middle energy level

• lowest energy level

• specific energy level

Which of the following electron configurations represents a noble gas element?

• 1s²2s²2p⁶3s²3p⁵

• 1s²2s²2p⁵

• 1s²2s²2p⁶

• 
  1s²2s²2p⁶3s¹