Electron Shells and Discovery

Electrons are negatively charged subatomic particles that stay near the positively charged nucleus of an atom. They occupy spaces linked to energy levels called shells. They are also arranged into subshells and orbitals within each shell.

An electron’s shell shows its general energy level. Electr...

Electrons are tiny, negatively charged particles that exist in an electron cloud around a positively charged nucleus. Within the cloud, electrons reside in distinct areas called shells or energy levels.

The energy levels are often visualized using the simplified Bohr or planetary model, where they are represented as rings around the nucle...