Electron Configuration and Orbital Notation and Quantum Numbers

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Which electron configuration belongs to Chlorine (Cl)?

• 1s² 2s² 2p⁶ 3s² 3p⁵
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁷

Tags

NGSS.HS-PS1-1

What is incorrect about this orbital diagram?

• Both arrows in the 2p box should be pointing up
• There is nothing incorrect with this diagram
• There should only be 1 orbital in the first 2p box and one in the 2nd 2p box

• All the arrows should be pointing up.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons can the d sublevel hold?

• 14
• 10
• 2
• 6

Which element is pictured?

• neon
• fluorine
• magnesium
• argon

Tags

NGSS.HS-PS1-1

The p orbitals are shaped like

• circles.
• dumbbells.
• spheres.
• electrons.

The Pauli exclusion principle states that no two electrons in the same orbital can 

• have the same set of quantum numbers.
• be at the same main energy level.
• have the same spin.
• occupy the same orbital.

The statement that an electron occupies the lowest available energy orbital is 

• the Pauli exclusion principle.
• Hund's rule.
• the Aufbau principle.
• Bohr's law.

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1

What is the noble gas notation electron for Sulfur?

• [Ne] 3p⁴

• [He] 3s² 3p⁴

• [Ne] 3s² 3p⁴

• [Na] 3s² 3p⁴

Tags

NGSS.HS-PS1-1