Section 3: Electron Configurations (On-line Option - Fall '25)

What is the noble gas configuration for boron?

• [He]1s²2s²
• [He]2s²2p²
• [He]2s²2p¹
• [Li]2s²2p¹

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NGSS.HS-PS1-1

What is the noble gas configuration for phosphorus?

• [Ar] 3p⁵
• [He] 3s² 3p⁵
• [Ne] 3s² 3p³
• [Na] 3s² 3p⁵
  

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NGSS.HS-PS1-1

[Ne]3s²3p⁵ is the noble gas configuration for which element?

• chlorine
• fluorine
• sulfur
• aluminum

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NGSS.HS-PS1-1

[Ne]3s²3p⁵ is the noble gas configuration for which element?

• chlorine
• fluorine
• sulfur
• aluminum

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NGSS.HS-PS1-1

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

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NGSS.HS-PS1-1

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

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NGSS.HS-PS1-1

What electron configuration matches an oxygen atom?

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

Tags

NGSS.HS-PS1-1

What electron configuration matches an oxygen atom?

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

Tags

NGSS.HS-PS1-1

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

• 14
• 28
• 2
• 4

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NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0