Electron configuration

How many electrons can the first energy level (s level) hold?

• 1
• 2
• 8
• 0

How many electrons can the d sublevel hold?

• 8
• 10
• 2
• 4

How many electrons can the p sublevel hold?

• 8
• 6

• 2
• 4

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

What element has this electron configuration?

• hydrogen

• helium

• lithium

• beryllium

Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

Electrons are paired based on their spin directions, clockwise and counterclockwise, is what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

What do you start all electron configurations with?

• 1s²

• 1d¹⁰

• 1f¹⁴

• 1p⁶