I have a hopefully simple question. I am a tutor working with a student that wants to know where to find the most recent accurate measurements for elemental properties. He's only in Chemistry I, so he's not looking for every property out there calculated multiple ways. I think he (and I) just like looking at the best sources. So we're looking for the following:
- Latent heat of fusion
- Latent heat of vaporization
- Melting point
- Boiling point
- Specific heat
- Ionization energy
- Atomic radius (metallic and covalent)
- Atomic mass
- Commonality and uncommonality of charges (like oxygen is commonly -2 but is also -1 in peroxide)
I can point him to wikipedia or https://ptable.com/#Properties/Series for some of the information, but I myself don't know where the most legitimate sources for these values can be found. My CRC handbook (97th edition) lists ionization energies, but for atomic weight it doesn't list the weight of the most common isotope of elements like Ac. Also, it's a few years old.
My question is, what are the current best sources of accurate values for each of these properties?