Physical Science - Grade 10 – Lesson 7

Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

What is incorrect about this orbital diagram?

• Both arrows in the 2p box should be pointing up
• There is nothing incorrect with this diagram
• In the 2p box 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.

Electrons are paired based on their spin directions, clockwise and counterclockwise, is what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

Which element is depicted from this orbital diagram

• Fluorine
• Neon
• Chlorine
• Argon

What is the symbol represented by this Aufbau diagram?

• C

• B

• N

• O

Which orbital shows a violation of Hund's Rule?

• A
• B
• C
• D

Which orbital shows a violation of the Pauli Exclusion Principle?

• A
• B
• C
• D

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

When an atom loses a valence electron, it becomes a(n) _____________ ion.

• positive
• negative
• neutral
• polyatomic