Atom May 2026

: This is the count of protons in the nucleus. For example, Hydrogen has 1 proton, while Gold has 79.

: Atoms can lose or gain electrons to become ions (charged particles) or vary their number of neutrons to become isotopes of the same element. : This is the count of protons in the nucleus

: Negatively charged particles that orbit the nucleus in specific regions called shells or orbitals. They are much smaller than protons and neutrons. Key Characteristics : Negatively charged particles that orbit the nucleus

: Particles with no charge, also found in the nucleus. They provide stability and contribute to the atom's mass. They provide stability and contribute to the atom's mass

: Most of an atom's volume is actually empty space. If an atom were expanded to the size of a football stadium, the nucleus would be the size of a marble in the center, and the electrons would be like tiny gnats buzzing around the highest seats.