: This is the count of protons in the nucleus. For example, Hydrogen has 1 proton, while Gold has 79.
: Particles with no charge, also found in the nucleus. They provide stability and contribute to the atom's mass. : This is the count of protons in the nucleus
: Positively charged particles located in the center of the atom (the nucleus). The number of protons determines the identity of the element. Hydrogen has 1 proton
An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. They are incredibly small, typically around 100 picometers across. Atomic Structure Atoms are made of three main subatomic particles: Licensed by Google : This is the count of protons in the nucleus