Question

3/4K which is the atomic mass

Answer 1

The expression "3/4K" does not directly relate to atomic mass. However, if you're referring to the atomic mass of the element potassium, its atomic mass is approximately 39.1 atomic mass units (amu).

If you meant something else by "3/4K" or if you have a different context in mind, please clarify, and I'll be happy to help!