It’s atomic mass is what the number means.
Electronegativity measures how much an atom likes to pull electrons away from another one. Ionization energy measures how much an atom doesn't want to lose electrons. As an atom that wants to gain electrons will clearly not want to lose electrons, these trends are basically identical.
I believe the answer is B. a million or more.
I got 134.91 but if you round it you’ll get 135
