LT 3.3 - Electron configuration, Orbital Diagram, and Valence Electron

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Section

• St. Anthony
• St. Augustine
• St. Benedict
• St. Francis of Assisi
• St. Ignatius

Which of the following best describes Aufbau Principle?

• Only two electrons can occupy an orbital
• Electrons enter the lowest available energy level
• Electrons remain unpaired if possible
• Orbitals are regions in space where one is likely to find an electron

What does the principal quantum number (n) represent in an atom?

• Spin of the electron
• Energy level
• Shape of the orbital
• Orientation in space

For an electron in an s orbital, what are the possible values of the azimuthal quantum number (l)?

• 0
• 1
• 2
• 3

Which of the following refers to "a region of space in which there is a high probability of finding an electron"?

• quantum
• orbital
• circular orbit
• photon

Why do electrons enter the 4s sub-level before the 3d sub-level?

• there is only one 4s orbital and there are 5 3d orbitals
• the 4s orbital is spherical
• the 4s orbital has a lower energy
• the 3d orbitals have a lower energy

How many electrons does the second energy level in the ground state of atomic Neon contain?

• 2
• 6
• 8
• 10

Which of the following is an INCORRECT orbital notation?

• 2d
• 2p
• 3s
• 3d

Which electron configuration is INCORRECT?

• A
• B
• C
• D