How do you calculate the thermionic work function of an element (hydrogen for example)?(adsbygoogle = window.adsbygoogle || []).push({});

I understand it is usually about 1/2 the ionization energy , but is there a formula to get the exact energy?

Can hydrogen even have a work function?

Thanks in advance.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# How to calculate thermionic work function

**Physics Forums | Science Articles, Homework Help, Discussion**