Understanding Quantum Numbers

What is essential to have when learning about quantum numbers?

• A calculator

• A periodic table and imagination

• A chemistry textbook

• A lab coat

Which of the following is NOT one of the four quantum numbers?

• Energy level

• Atomic mass

• Sub shell

• Magnetic spin

In the context of quantum numbers, what does 's' always equal?

• 3

• 2

• 1

• 0

What is the spin of the first electron in an orbital?

• +1

• +1/2

• -1/2

• 0

What principle states that no two electrons can have the same four quantum numbers?

• Hund's rule

• Pauli exclusion principle

• Heisenberg uncertainty principle

• Bohr's model

For the sixth electron in fluorine, what is the value of M sub L?

• 2

• 0

• 1

• -1

Which rule must be remembered when dealing with multiple electrons in the same sublevel?

• Hund's rule

• Pauli exclusion principle

• Bohr's model

• Heisenberg uncertainty principle

What is the energy level of the 19th electron in chromium?

• First

• Second

• Third

• Fourth

What is the significance of using argon as a reference in the shortcut for chromium?

• It has 18 electrons

• All of the above

• It is a noble gas

• It simplifies calculations

What is the best way to get better at writing quantum numbers?

• Reading textbooks

• Watching videos

• Practicing regularly

• Memorizing the periodic table