Understanding Atomic Theories

Front

*Front:* Dalton's Atomic Theory

Back

are indivisible particles; each element has identical atoms.

Front

*Front:* Thomson's Model

Back

pudding model; electrons in a positive sphere.

Front

*Front:* Rutherford's Experiment

Back

foil experiment; discovered nucleus.

Front

*Front:* Bohr's Model

Back

in fixed orbits; quantised energy levels.

Front

*Front:* Quantum Mechanical Model

Back

in orbitals; probability distributions.

Front

*Front:* Heisenberg Uncertainty Principle

Back

to know both position and momentum of an electron.

Front

*Front:* Schrödinger Equation

Back

electron behaviour as wave functions.

Front

*Front:* Atomic Orbital

Back

with high probability of finding an electron.

Front

*Front:* Pauli Exclusion Principle

Back

two electrons can have identical quantum numbers.

Front

*Front:* Hund's Rule

Back

fill degenerate orbitals singly first.