Electron configuration of elements

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Which electron configuration belongs to Chlorine (Cl)?

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

Identify the Electron Configuration for Aluminum (Al)

• 1s² 2s² 2p⁶ 3s² 3p¹
• 1s² 2s² 2p⁶ 3s² 3p³
• 1s² 2s² 2p⁶ 3s² 4p¹

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

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

What atom matches this electron configuration?
1s² 2s² 2p⁶ 3s²

• Neon
• Magnesium
• Aluminum
• Potassium

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

• 1 electron

• 2 electrons

• 3 electrons

• 4 electrons

How many valence electrons are represented here?

• 7
• 5
• 2
• 8

How many electrons can the d sublevel(orbital) hold?

• 8

• 10

• 2

• 4

What is this element?

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

• Argon

• Krypton

• Selenium

• Bromide

How many valence electrons does Chlorine have?

• 5
• 2
• 7
• 5