This radioactive particle, emitted from carbon-14, has a negative charge. it contains sufficient energy to burn human skin and can pass through paper. it is a(n) particle.

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.