Electron Configuration

What atom matches this electron configuration?

1s² 2s² 2p⁶ 3s²

• Neon

• Potassium

• Aluminum

• Magnesium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is the electron configuration for an oxygen atom?

• 1s²2s²2p⁶3s²3p⁶4s²
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶

Tags

NGSS.HS-PS1-1

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

• 1 electron
• 2 electrons
• 3 electrons
• 4 electrons

How many d orbitals are there in the d sublevel?

• 1

• 3

• 5

• 7

How many electrons can the p sublevel hold?

• 2

• 1

• 4

• 6

How many electrons can the d sublevel hold?

• 8
• 10
• 2
• 4

What is this element?

1s²2s²2p⁶3s²3p⁶

4s²3d¹⁰4p⁶

• Krypton

• Argon

• Selenium

• Bromide

Tags

NGSS.HS-PS1-1

What is the shorthand electron configuration for Sulfur atom?

• [Ar] 3p⁴
• [He] 3s²3p⁴
• [Ne] 3s²3p⁴
• [Na] 3s²3p³
  

Tags

NGSS.HS-PS1-1

How many electrons can the first principle energy level N=1 hold?

• 1

• 2

• 8

• 0

Which element is pictured?

• neon
• fluorine
• magnesium
• argon

Tags

NGSS.HS-PS1-1