A group of atoms such as OH is called...

What is a group of atoms such as OH called?

The group of atoms such as OH is called an ion. It has a negative charge of -1, which makes it an ion. All groups with charges are called ions, unless they are organic compounds. Therefore, the correct answer is C - ion.

In chemistry, ions are atoms or molecules that have an electric charge. This charge is due to the gain or loss of electrons during a chemical reaction. In the case of the group of atoms such as OH, it is called an ion because it carries a negative charge of -1.

Types of Ions:

Cation: A cation is a positively charged ion. It is formed when an atom loses one or more electrons. For example, if an atom of sodium loses one electron, it becomes a sodium cation (Na+).

Anion: An anion is a negatively charged ion. It is formed when an atom gains one or more electrons. In the case of the group of atoms such as OH, it becomes an anion with a charge of -1.

Importance of Ions:

Ions play a crucial role in many chemical processes and biological functions. They are involved in the formation of ionic compounds, electrolytes in solutions, nerve impulses, muscle contractions, and many other biological processes.

Understanding the concept of ions is fundamental in chemistry as it helps to explain the behavior of atoms in various chemical reactions. By recognizing the different types of ions and their charges, scientists can predict how they will interact with other substances.