Mastering Electronic Configurations

What is the correct electron configuration for the element Boron (B)?

• 1s² 2s² 2p¹

• 1s² 2s² 2p³

• 1s² 2s³

• 1s² 2s² 2p⁶

Tags

NGSS.HS-PS1-1

Which of the following represents the orbital notation for Nitrogen (N)?

• ↑↓ ↑↓ ↑ ↑ ↑

• ↑↓ ↑ ↑ ↑ ↑

• ↑↓ ↑↓ ↑↓ ↑

• ↑↓ ↑↓ ↑↓ ↑↓ ↑

Tags

NGSS.HS-PS1-1

How many electrons can the d subshell accommodate?

• 2

• 6

• 10

• 14

What is the electron configuration for Chromium (Cr)?

• [Ar] 4s² 3d⁴

• [Ar] 4s¹ 3d⁵

• [Ar] 4s² 3d⁵

• [Ar] 3d⁵ 4s¹

Tags

NGSS.HS-PS1-1

Which principle explains the filling of electrons into orbitals starting with the lowest energy level?

• Hund's Rule

• Pauli Exclusion Principle

• Aufbau Principle

• Heisenberg Uncertainty Principle

In the electron configuration [Ne] 3s² 3p⁴, which element is being described?

• Sulfur (S)

• Oxygen (O)

• Silicon (Si)

• Phosphorus (P)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the maximum number of electrons that can occupy a single orbital?

• 1

• 2

• 4

• 8

Which of the following is the correct electron configuration for the element Aluminum (Al)?

• 1s² 2s² 2p⁶ 3s² 3p¹

• 1s² 2s² 2p⁶ 3s¹ 3p²

• 1s² 2s² 2p⁶ 3s² 3p²

• 1s² 2s² 2p⁶ 3s² 3p³

Tags

NGSS.HS-PS1-1

Which rule states that electrons must occupy every orbital singly before any orbital is doubly occupied?

• Aufbau Principle

• Hund's Rule

• Pauli Exclusion Principle

• Dalton's Atomic Theory

What is the correct electron configuration for the element Neon (Ne)?

• 1s² 2s² 2p⁴

• 1s² 2s² 2p⁵

• 1s² 2s² 2p⁶

• 1s² 2s² 3p⁶

Tags

NGSS.HS-PS1-1