Give the value of the 1st ionization energy of beryllium (Be). Express your answer in Joules (J/atom).

Answer 1

Neutral Be or Be+++?
For neutral Be, you will have to look it up. It is too difficult to calculate and the Rydberg equation will not work.

Answer 2

1.49*10^-18

Answer 3

http://www.chemglobe.org/ptoe/_/4.php

The answer of mb is correct for the first ionization potential of neutral Be

Answer 4

14.934e-19 J/atom