* Protons and neutrons are located in the nucleus at the center of the atom. This dense, positively charged core accounts for almost all of the atom's mass.
* Electrons orbit the nucleus in specific energy levels or shells. These shells are arranged in increasing distance from the nucleus, and electrons in higher shells have more energy.
Here's a more detailed explanation:
* Protons: Positively charged particles that determine the element's atomic number.
* Neutrons: Neutral particles that contribute to the atom's mass.
* Electrons: Negatively charged particles that occupy regions of space around the nucleus called orbitals.
Important Note: The Bohr model, which depicts electrons orbiting the nucleus in circular paths, is a simplified representation. The actual behavior of electrons is more complex and is better described by quantum mechanics.
Let me know if you'd like more information about specific aspects of atomic structure!