Matter · Interactive Reference
Standard Model
Periodic Table
Nuclides
Cosmic Scales
Particle Physics
The
Standard
Model
17
elementary particles
3
generations of matter
4
fundamental forces
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Quarks
Leptons
Gauge bosons
Higgs
All fermions
All bosons
Generation I
everyday matter
Generation II
heavier cousins
Generation III
heaviest, unstable
Force carriers
bosons
Chemistry
The
Periodic
Table
118
known elements
94
naturally occurring
10
chemical families
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Alkali
Alkaline earth
Transition
Post-transition
Metalloid
Nonmetal
Halogen
Noble gas
Lanthanide
Actinide
Nuclear Physics
Chart of
Nuclides
~3,300
known nuclides
251
stable isotopes
5
primary decay modes
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Stable
β⁻ decay
β⁺ / EC
α decay
Primordial
Scales of the Universe
Cosmic
Scales
61
orders of magnitude
10⁻³⁵
m to
10²⁶
m
Planck
to
universe
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10
0
m
Human
One meter — the SI unit, originally defined as one ten-millionth of the distance from the equator to the North Pole through Paris.
10⁻³⁵
10⁻²⁵
10⁻¹⁵
10⁻⁵
10⁰
10⁵
10¹⁵
10²⁵