The Periodic Table
Posted inScience Simplified

The Periodic Table

The Periodic Table is a scientific chart that arranges all known chemical elements according to their atomic number (the number of protons in their nucleus), electron configuration, and recurring chemical properties.
The Quantum State
Posted inScience Simplified

The Quantum State

A quantum state is simply a description of everything we can possibly know about a particle at a given moment. It tells you things like: where the particle is likely to be, how fast it’s moving, what energy level it’s in, what direction it’s spinning (its “spin”), and other properties that define it uniquely.
The Pauli Exclusion Principle
Posted inScience Simplified

The Pauli Exclusion Principle

Atoms are made up of a nucleus (protons and neutrons) surrounded by electrons. These electrons don’t just float randomly — they live in specific “zones” called orbitals, like seats in a theater. Each seat (orbital) can hold two electrons, but only if they spin in opposite directions. Once that seat is filled, no other electron can sit there — it has to find another orbital or energy level. That’s Pauli’s rule.