The pauli exclusion principle states
a. no two electrons can have the same four quantum numbers.
b. energy levels will fill at the lowest levels first.
c. one electron will fill each orbital before pairing up.
d. the average spin of electrons will determine the number of electrons in an orbital.

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Define the kinetic molecular theory

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?