Electron Configurations

Which of the following is the correct electron configuration for a sodium atom?

• 1s¹   2s¹  3s¹ 
• 1s²   2s²  2p⁶  3s¹ 
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹
• 1s²   2s¹

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NGSS.HS-PS1-1

Which of the following is the correct electron configuration for a phosphorus  atom?

• 1s² 2s² 2p⁶ 3s² 3p³
• 1s²   2s²   3p³ 
• 1s² 2s² 2p⁶ 3s² 3p⁶ 
• 1s² 2s²  3s² 2p⁶ 3p³

Tags

NGSS.HS-PS1-1

Which of the following is the correct electron configuration for a carbon atom?

• 1s² 2s² 2p⁶ 3s² 3p²
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p²
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 4p²

Tags

NGSS.HS-PS1-1

Which of the following is the correct electron configuration for a neon atom?

• 1s² 2s² 2p³
• 1s² 2s² 2p⁶ 3s¹
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸
• 1s² 2s² 2p⁶ 

Tags

NGSS.HS-PS1-1

Which of the following elements is a noble gas?

• 1s² 2s²
• 1s² 2s² 2p⁵
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s¹

Tags

NGSS.HS-PS1-1

Which of the following elements is a transition metal?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁶ 
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁴

Tags

NGSS.HS-PS1-1

Which group of the periodic table has an electron configuration of ns² np⁵?

• Metalloids
• Nobel Gases
• Halogens
• Alkaline Metals

Tags

NGSS.HS-PS1-1

Which group of the periodic table has an electron configuration of ns²?

• Metalloids
• Nobel Gases
• Halogens
• Alkaline Earth Metals

Tags

NGSS.HS-PS1-1

What is the abbreviated electron configuration for silver?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁹
• [Kr] 5s² 4d⁹
• [Ar] 4s² 3d⁹
• [Ag]

Tags

NGSS.HS-PS1-1

What is the abbreviated electron configuration for barium?

• [Xe] 6s²
• [Rn] 6s²
• [Ar] 4s² 3d¹⁰ 4p⁵
• [He] 2s² 3p¹

Tags

NGSS.HS-PS1-1