Quantum Mechanics Review

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

The angular momentum quantum number indicates the

• orientation an orbital around the nucleus.
• shape of an orbital.
• direction of the spin of the electron in its orbital.
• main energy level of an orbital.

What is the electron configuration for nitrogen?

• 1s² 2s² 2p³
• 1s² 2s³ 2p²
• 1s² 2s³ 2p¹
• 1s² 2s² 2p² 3s¹

Tags

NGSS.HS-PS1-1

Which type of orbital is shaped like a sphere?

• s orbital
• p orbital
• d orbital
• f orbital

What is the electron configuration for V?

• [Ne] 4s2 4d3
• [Ar] 4s2 4d3
• [Ne]4s2 3d3
• [Ar] 4s2 3d3

Tags

NGSS.HS-PS1-1

What does the 1 in "1s" stand for?

• energy level

• s orbitals

• p orbitals

• the number of electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element has this orbital notation?

• lithium

• beryllium

• boron

• carbon

Tags

NGSS.HS-PS1-1

An electron occupies the lowest energy orbital that can receive it.

• Hund’s rule
• Pauli exclusion principle
• Bohr model of the atom
• Aufbau principle

All orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.

• Aufbau principle
• Pauli exclusion principle
• Hund’s rule
• Core Notation