Answer:
If an atom gains two electrons, it will have a charge of -2.
Step-by-step explanation:
Here's a step-by-step explanation:
1. Atoms are made up of protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge.
2. The charge of an atom depends on the number of protons and electrons it has. If an atom has an equal number of protons and electrons, it is neutral and has no overall charge.
3. When an atom gains electrons, it becomes negatively charged because electrons have a negative charge.
4. In this case, if an atom gains two electrons, it means it now has two more electrons than protons. Since electrons have a charge of -1, each additional electron adds a charge of -1. So, if an atom gains two electrons, the overall charge of the atom becomes -2.
To summarize, if an atom gains two electrons, it will have a charge of -2.