Electron Configuration

What is the electron configuration of sodium?

• 2.8
• 2.8.2
• 2.8.1
• 11

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration of calcium?

• 2.8.8.2
• 2.8.10
• 20
• 2.18.2

Tags

NGSS.HS-PS1-1

Which element has an electron configuration of 2.5?

• Oxygen
• Nitrogen
• Phosphorus
• Carbon

Tags

NGSS.HS-PS1-1

Which element has the electron configuration of 2.8.2?

• Magnesium
• Sodium
• Sulfur
• Arsenic

Tags

NGSS.HS-PS1-1

What is the electron configuration of beryllium?

• 2.2
• 2.4
• 4
• 6

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• Neon
• Magnesium
• Aluminum
• Potassium

Tags

NGSS.HS-PS1-1

Which is the electron configuration for an oxygen atom?

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

Tags

NGSS.HS-PS1-1

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

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

• 14
• 28
• 2
• 4

Tags

NGSS.HS-PS1-1