An atom is electrically neutral. How can it become charged?

An atom can become charged by either gaining or losing electrons. This process is known as ionization. Here are the steps:

1. Atoms are made up of protons, neutrons, and electrons. Protons carry a positive charge, electrons carry a negative charge, and neutrons carry no charge. In a neutral atom, the number of protons equals the number of electrons, so their charges cancel each other out, making the atom electrically neutral.

2. If an atom gains or loses electrons, it becomes an ion. An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

3. If an atom gains electrons, it becomes a negatively charged ion, or an anion. This is because it now has more electrons (negative charge) than protons (positive charge).

4. If an atom loses electrons, it becomes a positively charged ion, or a cation. This is because it now has more protons (positive charge) than electrons (negative charge).

5. The process of gaining or losing electrons can occur through various means, such as through chemical reactions, exposure to radiation, or interaction with an electric field.

So, an atom becomes charged through the process of ionization, which involves the gain or loss of electrons.