Orbital Diagram Practice

Which of the following states that electrons occupy orbitals of lowest energy first?

• Hund’s Rule

• Aufbau Principle

• Pauli Exclusion Principle

This orbital diagram represents:

• Carbon

• Boron

• Nitrogen

• Oxygen

Tags

NGSS.HS-PS1-1

This orbital diagram represents

• Nitrogen

• Oxygen

• Carbon

• Neon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is incorrect about this orbital diagram?

• Both arrows in the 2p box should be pointing up

• There are too many electrons in the 1s orbital

• In the 2p boxes, there should only be 1 electron in the first 2p box and one in the 2nd 2p box

• All the arrows should be pointing up

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What does the Pauli Exclusion Principle state?

• An orbital can only hold a maximum of 2 electrons, each with opposite spins

• An orbital can hold a minimum of 6 electrons, each with opposite spins

• An orbital can hold a maximum of 6 electrons, each with the same spin

• An orbital can hold a maximum of 2 electrons, each with the same spin

Which orbital diagram violates of Hund's Rule?

• A

• B

• C

• D

This orbital diagram represents

• Nitrogen

• Oxygen

• Carbon

• Neon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these is the correct Bohr model for fluorine?

• 
• 
• 
• 

Answer explanation

Fluorine is in the 2nd period, so it has 2 electron shells. It's a halogen, so it has 7 valence electrons. The only one that has that many valence electrons is B. You can also count the total number of electrons, which is 9. That's how many electrons a neutral atom of fluorine has.

Tags

NGSS.MS-PS1-1

Which is the correct lewis dot diagram for carbon?

• D

• E

• F

• G

• H

Answer explanation

Carbon has 4 valence electrons, so the lewis dot diagram should have only 4 dots.

Tags

NGSS.MS-PS1-1

Which of these is WRONG?

• A

• B

• C

• D

Answer explanation

D is wrong because the final electron must have the same spin as the other electrons in its orbital. The others are up, so that electron must be up as well.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2