Which type of particle has a positive charge? alpha gamma x-rays beta

## Step 1<br />The problem asks us to identify which type of particle among the given options has a positive charge. The options are alpha, gamma, x-rays, and beta.<br /><br />## Step 2<br />Alpha particles are helium nuclei, which consist of two protons and two neutrons. Since protons carry a positive charge, alpha particles also carry a positive charge.<br /><br />## Step 3<br />Gamma rays and x-rays are types of electromagnetic radiation, not particles. They do not carry any charge.<br /><br />## Step 4<br />Beta particles can be either electrons or positrons. Electrons carry a negative charge, while positrons carry a positive charge. However, in the context of this question, beta particles are generally referred to as electrons, which carry a negative charge.