atomic theory

Discrete particle model

Atomic theory is the scientific framework holding that all matter consists of tiny, indivisible particles called atoms.

The theory evolved from ancient Greek speculation through nineteenth-century chemistry to modern quantum mechanics.

Today it encompasses atomic structure—protons, neutrons, electrons—and explains chemical bonding, radioactivity, and the periodic table: Atomic theory revolutionized our understanding of matter.

structure

nucleus

Central controlling part

orbital · shell · electron cloud · valence · isotope · ion · energy level · nucleon · mass number · electron shell

chemical

periodic table

Systematic display of elements

reactivity · molecule · compound · chemical properties · ionic · covalent · noble gas · halogen · transition metal · electronegativity

philosophical

Democritus

Ancient atomism's founder

pre-Socratic · Lucretius · materialism · Epicurus · mechanism · reductionism · discontinuous · uncuttable · natural philosophy · corpuscular

historical

Dalton

English-origin family name

Chadwick · cathode rays · Avogadro · Mendeleev · spectral lines

quantum

wavefunction

Quantum state's mathematical representation

Planck · quantization · superposition · orbital · spin · quantum mechanics · standing wave

Categories
Opposites
matter structure

atomic theoryAristotelian physics

Ancient Greek motion theory

field theory · wave theory · holism

scientific paradigm

atomic theoryAristotelian physics

Ancient Greek motion theory

vitalism · phlogiston theory · caloric theory · natural philosophy · geocentric model

Family

theory, atom, atomic, atoms, atomizer, atomize, subatomic, atomism, atomized

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