A student uses eight chocolate sandwich cookies to model the Moon's phases. The student separates each cookie and removes frosting to show how the Moon looks at each phase. How would the student create the Waning Gibbous phase?

The link below is a picture of the "Waning gibbus" phase,  really hope that it helps you out :D

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).