Recent content by Einstein Jr.

Can you please explain the difference between ground state and stationary state? In the stationary state, are the electrons at rest inside the atom?

By normal mass I meant the way of measurement of mass that I use in everyday life. I now know that I meant rest mass. Sorry for being so unscientific :( I'm kinda new here. Now, according to you guys, an electron orbiting an atom will have a huge mass. (this is what happens in an atom, if I'm...

What is the difference between rest mass and normal mass? Even if an electron moves at near light speed, wouldn't we get a huge value for its mass, rather than a really small value like 9.1x10^-31?

If an electron moves at light speed, how do we know that it has a definite mass(9.1 x 10^-31kg)? According to relativity, shouldn't its mass be infinite?