Electrons and Orbitals

According to Pauli Exclusion Principle, how many electrons may occupy a single orbital?

• 1

• 2

• 4

• 8

“An electron should occupy the lowest energy level first before the higher energy level” is stated in what rule?

• Hund's rule

• Pauli Exclusion Principle

• Aufbau Principle

• All of the above.

What rule states that single electrons must occupy each equal-energy orbital before additional electrons can occupy the same orbitals.

• Hund's rule

• Pauli Exclusion Principle

• Aufbau Principle

• None of the choices.

Which of the following statement is wrong?

• Two electrons must occupy each equal energy orbital before additional electrons can occupy the same orbitals.

• A maximum of two electrons may occupy the same orbitals.

• In filling up orbitals, electron occupies the lowest energy orbital first before the higher energy orbitals.

• None of the choices.

Tags

NGSS.HS-PS1-1

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

• period

• s

• element

• 1

• block

• 2

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

What is the electron configuration of Argon?

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁶ 3s¹

• 1s² 2s² 2p⁶ 3s²

• 1s² 2s² 2p⁶ 3s² 3p⁶

Tags

NGSS.HS-PS1-1

Which atom has an electron configuration of 1s² 2s² 2p⁶?

• He

• Ne

• Ar

• Xe

Tags

NGSS.HS-PS1-1

Which of the following electron configurations is CORRECT?

• 1s² 2s³

• 1s² 2s² 2p⁶

• 1s² 2s² 3s²

• 1s² 2s² 2p⁶ 3s² 4s²

Tags

NGSS.HS-PS1-1

If the first and second energy levels of an atom are full, then what would be the total number of electrons in the atom?

• 6

• 8

• 10

• 18

Tags

NGSS.HS-PS1-1