Electron Configuration Quiz

What are the 4 Shells (blocks) that hold orbitals?

• A, B, C, D

• S, P, D, F

• S, P, D, E

• A, S, P, D

In what order do you write the three things for electron configuration?

• 1) Energy Level (Period)

  2) Shell (Block)

  3) Number of Electrons in the orbitals

• 1) Shell (Block)

  2) Energy Level (Period)

  3) Number of Electrons in the orbitals

• 1) Number of Electrons in the orbitals

  2) Shell (Block)

  3) Energy Level

  (Period)

• 1) Energy Level (Period)

  2) Number of Electrons in the orbitals

  3) Shell (Block)

Tags

NGSS.HS-PS1-1

When writing the unabbreviated electron configuration always start with energy level 1, S block.

• True

• False

When writing an abbreviated electron configuration always start with the Noble Gas at the end of the row the element is on?

• True

• False

Answer explanation

False. It is the Noble Gas at the end of the row above the element.

Tags

NGSS.HS-PS1-1

What is the electron configuration for Sodium?

• 1S², 2S², 2P⁶, 3S²

• 1S², 2S², 2P⁶, 3P¹

• 1S², 2S², 2P⁶, 3S¹

• 1S², 2S², 2P⁶, 3d¹

Tags

NGSS.HS-PS1-1

What is the abbreviated electron configuration for cobalt (27)?

• [Ar] 4S², 3d⁷

• [Ar] 4S², 3d¹⁰

• [Kr] 4S², 3d⁷

• [Kr] 4S², 3d¹⁰

Tags

NGSS.HS-PS1-1

What element is represented by the electron configuration [Xe] 6S², 3d⁷?

• Sodium (11)

• Iodine (53)

• Cesium (55)

• Barium (56)

Which element is represented by the electron configuration 1S², 2S²,2P^2?

• Boron (5)

• Carbon (6)

• Nitrogen (7)

• Oxygen (8)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why is the following electron configuration NOT valid?

2S², 2P², 3S²

• Because it doesn't follow the Aufbau Principle of filling the lowest energy level (1S) first.

• Because it doesn't follow Hund's Rule that electrons fill all empty orbitals before sharing an orbital.

• Because it doesn't follow the Pauli Exclusion Principle where electrons sharing an orbital have opposite spins.

A description of shells, subshells, and orbitals occupied by electrons describes which of the following?

• Electrons in Bonds

• Electron Configuration

• Atomic Radius

• Electron Motion