Electron Configurations and Orbital Notation

Front

What is the electron configuration for Nitrogen?

Back

1s² 2s² 2p³

Front

How many valence electrons does an atom of Silicon (Si) have?

Back

4

Front

What is the electron configuration for the P³⁻ ion?

Back

1s² 2s² 2p⁶ 3s² 3p⁶

Front

What does the orbital diagram for Nitrogen look like?

Back

1s: ↑↓ 2s: ↑↓ 2p: ↑ ↑ ↑ (3 unpaired electrons in 2p)

Front

What is the electron configuration for Oxygen?

Back

1s² 2s² 2p⁴

Front

Define valence electrons.

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is the significance of the Aufbau principle in electron configurations?

Back

The Aufbau principle states that electrons occupy the lowest energy orbitals first before filling higher energy levels.

Front

What is Hund's rule?

Back

Hund's rule states that electrons will fill degenerate orbitals singly before pairing up.

Front

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

Back

2 electrons, with opposite spins.

Front

What is the electron configuration for Sodium (Na)?

Back

1s² 2s² 2p⁶ 3s¹