Electron Configuration

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

• Neon

• Magnesium

• Aluminum

• Potassium

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 a given sublevel?

• 1
• 3
• 5
• 7

How many electrons can the d sublevel hold?

• 8
• 10
• 2
• 4

What atom matches this electron configuration? [Xe] 6s² 4f¹⁴ 5d⁹

• Mercury

• Gold

• Platinum

• Thallium

What is the shorthand electron configuration for Sulfur atom?

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

Tags

NGSS.HS-PS1-1

What element in Period 4 has 5 valence electrons?

• Zr
• As
• V
• Sb

Tags

NGSS.HS-PS1-1

How many valence electrons does Chlorine have?

• 5
• 2
• 7
• 5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does phosphorus have?

• 5
• 2
• 8
• 15

Tags

NGSS.HS-PS1-1

Which element is pictured?

• neon
• fluorine
• magnesium
• argon

Tags

NGSS.HS-PS1-1