When a gas changes into a liquid, this is known as

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Adilute aqueous potassium nitrate solution is