Quantum Numbers and Electron Configurations

This "rule" of Quantum Chemistry states that no 2 electrons in an atom can be in the exact same state...each electron in an atom can be described by a unique set of quantum numbers.

• Hund's Rule

• Heisenberg Uncertainty Principle

• Aufbau Principle

• Pauli Exclusion Principle

How many quantum numbers are needed to describe the energy state of an electron in an atom?

• 1

• 2

• 3

• 4

What is the total number of energy levels used by an atom of aluminum
(Al, atomic #13) in the ground state?

• 3

• 7

• 13

• 0

According to the Aufbau Principle, which sublevel should starting filling with electrons after 5s?

• 6s

• 5p

• 4d

• 3f

Match the parts of the electron configuration to what it represents.

• period

• 2

• element

• s

• block

• 1

Tags

NGSS.HS-PS1-1

Match the following

(a)   states that electrons fill the lowest energy orbitals first

• Heisenberg Uncertainty Principle

• Aufbau Principle

• Hund's Rule

• Mrs. Vollers

Which element is depicted from this orbital diagram

• Fluorine

• Neon

• Chlorine

• Argon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Identify the following element:
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• nickel

• copper

• zinc

• gallium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The second energy level (n=2) contains a total of 5 electrons...how many more electrons can fit in the 2nd energy level?

• 0

• 3

• 5

• 7

Identify the element whose electron configurations ends with 5p³

• As

• Te

• Sb

• Sn

Tags

NGSS.HS-PS1-1