What is the mass number of the particle emitted from the nucleus during beta minus (B-) decay? 2. What kind of charge does the particle emitted from the nucleus during beta minus (B-) decay have?

During beta minus decay, a neutron is converted into an electron and a proton. The electron with high velocity is emitted out of the nucleus and its mass is 1/1836 units. Also, electron has a negative charge, and thus the charge of particle emitted during beta minus decay is - 1.