Electron Configurations

Which of the following subshells holds the most electrons?

• s

• p

• d

• f

Which of the following subshells holds the least electrons?

• s

• p

• d

• f

Which of the following elements is located in the 5p subshell?

• Pb

• Sb

• Ag

• Au

Tags

NGSS.HS-PS1-1

Which element has the following electron configuration:

1s² 2s² 2p⁶ 3s² 3p²

• Mg

• Al

• Si

• P

Tags

NGSS.HS-PS1-1

What is the correct electron configuration for strontium (Sr)?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 5s²

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s²

Tags

NGSS.HS-PS1-1

What is written at the beginning of a condensed electron configuration?

• In brackets, the noble gas located at the far right of the same horizontal row on the table.

• In brackets, the noble gas located at the far right of the preceding horizontal row on the table.

Tags

NGSS.HS-PS1-1

What is the correct condensed electron configuration for potassium (K)?

• [Ar] 4s¹

• [Kr] 4s¹

• [Ar] 4s²

• [Kr] 4s²

Tags

NGSS.HS-PS1-1

Which of the following elements is an exception to the normal rules of electron configuration?

• lead (Pb)

• tungsten (W)

• iron (Fe)

• chromium (Cr)

What is the correct condensed electron configuration for silver (Ag)?

• [Kr] 5s¹ 4d¹⁰

• [Xe] 5s¹ 4d¹⁰

• [Kr] 5s² 4d⁹

• [Xe] 5s² 4d⁹

Tags

NGSS.HS-PS1-1

What is the correct condensed electron configuration for the ion Ca²⁺?

• [Ar]

• [Ar] 4s²

• [Kr]

• [Kr] 4s²

Tags

NGSS.HS-PS1-1