Atomic Weight (Relative Atomic Mass): Sample Calculation & vs. atomic mass, mass number, molar mass

[@goxlau3243]

finally somebody who tells me what are the difference of mass number and atomic weight, now I can rest in peace.😌

[@renzowonminpark3698]

Could you post a video about relevant periodic trends, such as ionic vs atomic radios, Zeff, Ionisation Energy, & electronegativity?

[@ketzbook]

I'll keep that in mind