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atomic

atomic

50 3.9
Relating to atoms and their properties
  • adjective
  • /əˈtɑːmɪk/
  • Specialized
translation icon : atómico
  • The atomic theory provides a fundamental explanation for the composition of matter.
  • atomic nucleus
  • atomic structure
  • atomic physics

That's the floor, or rather the atomic bonds in the floor and in the ground below.

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Examples

  • For example, diffusion along atomic rows and across them can be expected to be different.

    Academic text (1993)
  • OK, now what gives atomic orbitals their shape?

  • And at the atomic level, the energy levels are much higher.

  • And the energy in atomic units is not one.

  • We know that it's atomic in nature.

  • And what could be more precise than the atomic scale?

  • The atomic number of zinc is 30.

  • Plane waves do not depend on the atomic positions, so using them makes the results more precise.

    Academic text (1999)
  • But we can keep zooming even further to the centre of the atom, the atomic nucleus.

  • Planck's constant is a fundamental part of the study of atomic and subatomic processes in atomic physics.

    Academic text (1991)

Idioms

9.7

To use the F-word to shock people

Compounds

atomic bomb
  • Specialized
66 2.3

A very powerful weapon that splits atoms to make a huge explosion and destroy large areas

11 3.5

A very powerful explosive that uses energy from splitting or joining atoms to destroy things

atomic clock
  • Specialized
5 4.3

A very accurate clock that uses atoms to measure time

atomic energy
  • Specialized
5 3.8

Energy made when atoms split or join

An international organization that helps countries use nuclear energy safely and peacefully

A former United States government agency that oversaw nuclear energy research and civilian use

atomic explosion
  • Specialized
3 4.2

A huge blast from an atomic bomb that destroys a wide area

2 3.2

Energy from nuclear reactions that makes electricity for homes and cities

atomic structure
  • Specialized
2 4.1

The way atoms are arranged inside a material

atomic weight
  • Specialized
2 3.9

The average mass of the atoms of a chemical element, measured in atomic mass units

atomic number
  • Specialized
1 3.4

Number of protons in an atom's center that shows its place in the periodic table

atomic mass
  • Specialized
1 3.6

A number that tells how heavy one atom of an element is in atomic mass units

atomic reactor
  • Specialized
1 4.3

A machine that splits atoms to make energy for electricity or research

atomic warhead
  • Specialized
1 5.1

Part of a missile or bomb that explodes and has a nuclear weapon

atomic theory
  • Specialized
1 3.6

A scientific idea that all matter is made of tiny particles called atoms

atomic spectrum
  • Specialized
1 6.0

A pattern of lines in light made when atoms take in or give off energy, showing which element it is

atomic cocktail
  • Archaic
8.5

A dose of radioactive medicine you swallow to treat or find cancer

atomic cocktail
  • Informal
7.9

A strong mixed drink made with more than one kind of alcohol and bright layers

atomic F-bomb
  • Offensive
8.5

A very strong use of the F-word that shocks people

atomic mass unit
  • Specialized
3.9

A small unit for mass used to measure atoms and molecules

atomic number 100
  • Specialized
9.9

A radioactive metal made by shooting neutrons at plutonium in a lab

atomic number 10
  • Specialized
4.8

A colorless gas used in bright red signs and lights

atomic number 102
  • Specialized
9.3

A radioactive metal element called nobelium with atomic number 102 that scientists use only for research

atomic number 103
  • Specialized
9.9

A radioactive element called lawrencium that scientists make in a lab

atomic number 105
  • Specialized
8.5

An element called dubnium with symbol Db and atomic number 105

atomic number 104
  • Specialized
9.9

A man-made radioactive chemical element called rutherfordium with symbol Rf

atomic number 57
  • Specialized
8.7

A soft white metal found in rare earth minerals, used in special glass and camera lenses

atomic number 56
  • Specialized
4.1

A soft silvery metal called barium used in medicine and industry

atomic number 58
  • Specialized
7.8

A soft grey metal used in lighter flints and many industries

atomic number 60
  • Specialized
7.4

A soft metal called neodymium from the rare earths used in strong magnets and lasers

atomic number 59
  • Specialized
7.7

A soft yellow-white metal used in alloys and special glass

atomic number 61
  • Specialized
9.9

A soft silver metal from the rare earth group that is radioactive and has no stable forms

atomic number 63
  • Specialized
7.4

A rare earth metal with the symbol Eu

atomic number 62
  • Specialized
8.4

A silvery metal called samarium that is used in powerful magnets and electronics

atomic number 64
  • Specialized
7.5

A silvery-white chemical element used in magnets and medical imaging

atomic number 67
  • Specialized
8.6

A rare earth metal called holmium that helps make very strong magnets

atomic number 65
  • Specialized
8.9

A metal found in minerals and used in some lasers and glowing materials

atomic number 68
  • Specialized
8.3

A rare earth metal called erbium that is used in lasers

atomic number 7
  • Specialized
3.7

A colorless, odorless gas that makes up most of the air and is needed by living things

atomic number 70
  • Specialized
8.1

A soft silvery metal called ytterbium that has atomic number 70

atomic number 71
  • Specialized
8.9

A rare metal element called lutetium that is often found with yttrium

atomic number 72
  • Specialized
8.4

A grey metal called hafnium used in hot parts and X-ray tubes

atomic number 73
  • Specialized
7.6

A hard grey metal that resists rust and is used in medical devices

atomic number 75
  • Specialized
8.2

A rare heavy metal called rhenium used in alloys that resist heat

atomic number 76
  • Specialized
8.0

A very heavy, hard, brittle metal named osmium that is blue-grey

atomic number 77
  • Specialized
8.4

A heavy, rare metal used in strong metal mixtures and often found with platinum

atomic number 78
  • Specialized
5.6

A heavy, valuable grey-white metal that resists corrosion and is used for jewelry

atomic number 80
  • Specialized
4.8

A heavy silvery metal that is liquid at room temperature and toxic

atomic number 84
  • Specialized
9.3

A radioactive metal called polonium that is found with uranium and used in some devices

atomic number 81
  • Specialized
9.8

A soft, silvery metal that is very poisonous and darkens in air

atomic number 85
  • Specialized
9.9

A very rare radioactive element that breaks down quickly and is called astatine

atomic number 87
  • Specialized
9.8

A very rare metal called francium that is highly radioactive

atomic number 88
  • Specialized
8.2

A radioactive metal called radium that appears in small amounts in uranium ores

atomic number 91
  • Specialized
9.6

A radioactive metal element called protactinium often made when uranium breaks down

atomic number 92
  • Specialized
6.8

A heavy radioactive metal used as fuel in nuclear reactors and in weapons

atomic number 93
  • Specialized
9.0

A radioactive metal called neptunium found in uranium ores and nuclear reactors

atomic number 95
  • Specialized
8.1

A radioactive metal called americium used in smoke detectors

atomic number 98
  • Specialized
9.5

A radioactive metal called californium used in nuclear research

atomic pile
  • Archaic
7.7

An early device that makes energy by splitting atoms

atomic number 99
  • Specialized
9.9

A radioactive metal called einsteinium with atomic number 99 made by hitting plutonium atoms with neutrons

atomic number 106
  • Specialized
9.2

A man-made element called seaborgium with atomic number 106

atomic number 107
  • Specialized
8.1

A very heavy radioactive metal made in labs called bohrium

atomic number 108
  • Specialized
9.9

A man-made radioactive heavy metal element called hassium with atomic number 108

atomic number 109
  • Specialized
9.9

A very heavy radioactive metal that scientists make in labs and has atomic number 109

atomic number 110
  • Specialized
9.1

A man-made chemical element named darmstadtium with 110 protons used only in research

atomic number 111
  • Specialized
9.5

A radioactive metal element called roentgenium whose atoms have 111 protons

atomic number 112
  • Specialized
9.6

A very heavy radioactive metal made by scientists and named copernicium

atomic number 113
  • Specialized
8.7

A man-made radioactive element named nihonium with atomic number 113

atomic number 114
  • Specialized
9.0

A very heavy man-made element called flerovium with atomic number 114

atomic number 115
  • Specialized
7.7

A very heavy chemical element made in a lab that breaks down quickly

atomic number 116
  • Specialized
7.0

A radioactive element named livermorium with symbol Lv that has 116 protons in its atoms

atomic number 15
  • Specialized
4.8

A chemical element used in fertilizers and found in plants and bones

atomic number 17
  • Specialized
3.8

A poisonous yellow-green gas used to kill germs and to bleach things

How Small

subatomic
  • Specialized
27 6.3
submolecular
  • Specialized
1 8.2
atomic
  • Specialized
50 3.9
molecular
  • Specialized
126 4.6
microscopic
  • Specialized
6 5.3
macroscopic
  • Specialized
4 5.6

Surface Forms

atomic positive

Morphology

atomic = atom (transparent) = atom + ic

The adjective is a direct formation from the noun 'atom' with the productive suffix '-ic', meaning 'relating to atoms'.

Etymology

The word atomic comes from the Greek atomos, which means 'not cut' or 'indivisible' and comes from a- 'not' and tomos 'cut'. Because early scientists thought atoms were the smallest uncut pieces of matter, atomic now means 'relating to atoms'.