Ionic compounds 1. dissolve easily in water 2. do not dissolve in water 3. have low melting points 4. have high melting points 5. conduct electricity when melted select all that apply

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?

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

How many atomic mass units are equal to 1.672×10−24 g of protons?