Beta particles have... a negative charge and zero mass no charge and no mass a positive charge and 4amu mass a negative charge and almost no mass

## Step 1<br />Beta particles are high-energy, high-speed electrons or positrons that are emitted by certain types of radioactive nuclei. They are a type of ionizing radiation.<br /><br />## Step 2<br />There are two types of beta particles: beta-minus (β-) and beta-plus (β+). <br /><br />## Step 3<br />Beta-minus (β-) particles are high-energy electrons. They have a negative charge and almost no mass. This is because they are essentially electrons, which are subatomic particles with a negative charge and negligible mass.<br /><br />## Step 4<br />Beta-plus (β+) particles are high-energy positrons. They have a positive charge and almost no mass. This is because they are essentially positrons, which are the antiparticles of electrons, with a positive charge and negligible mass.<br /><br />## Step 5<br />Given the options, the correct answer is "a negative charge and almost no mass". This is because beta particles, specifically beta-minus (β-) particles, have a negative charge and almost no mass.