An example of a substance made up of only one type of atom is an element. Elements are pure substances composed of only one type of atom. Each element is uniquely characterized by the number of protons in the nucleus of its atoms, which is referred to as the atomic number.
Here are a few examples of elements:
Oxygen (O): Oxygen is an element that consists solely of oxygen atoms. It is a key component of the Earth's atmosphere and is essential for supporting life.
Gold (Au): Gold is an element known for its lustrous yellow appearance. It consists entirely of gold atoms and is widely used in jewelry and various industrial applications.
Carbon (C): Carbon is a versatile element that forms the basis of organic chemistry. It is present in various forms, including diamond and graphite, and is a fundamental element in the molecules of living organisms.
Hydrogen (H): Hydrogen is the simplest element, consisting of only one proton and one electron. It is the most abundant element in the universe and plays a crucial role in chemical reactions and energy production.
These are just a few examples of the many elements that exist. Each element has its own unique set of properties and characteristics, determined by the structure and behavior of its atoms.