Subject: What are the properties for which Quantum uncertainity is applicable?

Hi,

I have a very limited knowledge in physics. I want to know whether the quantum 
uncertainity is restricted to only the position of a particle or is it general 
for all the properties of a particle. For example, we know that the absolute 
position of a subatomic particle cannot be determined with certainity but can 
be assessed only probabilistically. Is the same concept true also for other 
properties like spin, energy, charge, mass etc? If not, for which properties 
does the quantum uncertainity hold true and for which properties it is not? 
For example, if we consider an electron, it does not have a definite position 
but it has a definite mass(9*10-31 kg), charge(1.6*10-19 coulombs) and energy. 
So, why quantum uncertainity holds true only for some properties like position 
and not for other properties like mass, charge, energy etc? And for which 
other properties, does quantum uncertainity hold?

Re: What are the properties for which Quantum uncertainity is applicable?