What is the value of mass and charge on the proton ?

What is the charge , mass and charge to mass ratio of an electron ?

Mention the value of charge on a proton.

What is the mass of a proton?

A proton moves with a speed u directly toward a free proton originally at rest. Find the distance of closest approach for the two protons. Given that mass of the proton is m and charge of the proton is +e.

State (a) the mass (b) charge on : proton

What is the value of charge on a body which carries (12) excess of protons?