Which radioactive emanations have a charge of -1?
beta particles
alpha particles
gamma rays
neutrons
Is beta particles the answer?
Beta particles are electrons. What charge are they?
yes
The radioactive emanation with a charge of -1 is known as beta particles. Beta particles are high-energy electrons or positrons that are released during the process of radioactive decay. They are emitted from the nucleus of a radioactive atom when a neutron is converted into a proton, or when a proton is converted into a neutron.
To determine which radioactive emanations have a charge of -1, you can recall that alpha particles are made up of two protons and two neutrons, so they have a charge of +2. Gamma rays are electromagnetic radiation and have no charge. Neutrons are neutral particles and do not carry any charge.
Therefore, the correct answer is beta particles.