What's the difference between atom and subatom?

Atom


Definition:

  • (n.) An ultimate indivisible particle of matter.
  • (n.) An ultimate particle of matter not necessarily indivisible; a molecule.
  • (n.) A constituent particle of matter, or a molecule supposed to be made up of subordinate particles.
  • (n.) The smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule.
  • (n.) Anything extremely small; a particle; a whit.
  • (v. t.) To reduce to atoms.

Example Sentences:

  • (1) It has been conformed that catalase from bovine liver eliminates only the pro R hydrogen atom from ethanol.
  • (2) The results demonstrated that K2PtCl4 was bound to a greater degree than CDDP in this system with 3-5 and 1-2 platinum atoms respectively, bound per transferrin molecule.
  • (3) Richard Bull Woodbridge, Suffolk • Why does Britain need Chinese money to build a new atomic generator ( Letters , 20 October)?
  • (4) The bond distances of Cu to Cl(1), Cl(2), N(3) and N(3') atoms are 2.299 (1), 2.267 (1), 1.985 (4) and 1.996 (3) A, respectively.
  • (5) The common atoms of the [3Fe-4S] and [4Fe-4S] cores agree within 0.1 A; the three common cysteinyl S gamma ligand atoms agree within 0.25 A.
  • (6) This result was confirmed by atomic absorption spectroscopy, which indicated a stoicheiometry for copper and manganese of approx.
  • (7) The inter-molecular similarity measure used is the number of atoms in the 3-D common substructure (CS) between the two molecules which are being compared.
  • (8) The risks are determined, mainly by expert committees, from the steadily growing information on exposed human populations, especially the survivors of the atomic bombs dropped in Japan in 1945.
  • (9) All N and O atoms except N(3) and O(4') participate in a three-dimensional hydrogen-bonding system.
  • (10) This suggestion is supported by EPR studies, which show that the iron atoms in Fe(III)L-globin are in two low electronic states.
  • (11) The molar refractivity has been shown to be a superior parameter for the description of the activity of sulphonamides than the sum of electronegativities of atoms making up a heterocyclic substituent in the sulphonamide molecule and molecular weight of the substituent.
  • (12) Binding to HSA occurs primarily with the imidazolidine and thiazolidine groups of levamisole as it has been demonstrated by selective changes in the relaxation times and the chemical shifts of the protons attached to the carbon atoms.
  • (13) Each repeat unit contains thirty amino acids and is thought to bind a zinc atom using two cysteines and two histidines as ligands.
  • (14) NADP+ bound at the C8 atom in the adenine moiety proved to be the most efficient ligand whereas that bound at the C3 atom of the ribose moiety was relatively inefficient.
  • (15) This structure is further characterized by approaches of both the carbonyl and the furan O atoms to ring H atoms with separations which are slightly less than the sum of the relevant van der Waals radii.
  • (16) The magnitude of improvement achieved is dependent upon field size, SSD, the atomic number of the foil material, and foil thickness.
  • (17) For the liver enzyme, the logarithm of the inhibition constant was linearly related to the number of carbon atoms in the saturated fatty acids whereas the muscle enzyme, which was generally more strongly inhibited, showed a nonlinear dependence.
  • (18) Results obtained from a such study are here compared with levels obtained from a comparative determination of the metals in the mosses by three other techniques: Differential pulse anodic stripping voltammetry (DPASV), Direct current plasma (atomic emission) spectroscopy (DCPS) and X-ray fluorescence (XRF) spectroscopy.
  • (19) It was hypothesized that the observed activity variation of the paracetamol analogues was based on the relative abilities of these compounds to undergo H atom loss at the phenolic oxygen, and on the relative stabilities of the resulting free-radical species.
  • (20) The resulting family of structures has a mean backbone rmsd of 0.63 A (N, C alpha, C', O atoms), excluding the segments containing residues 45-59 and 84-88.

Subatom


Definition:

  • (n.) A hypothetical component of a chemical atom, on the theory that the elements themselves are complex substances; -- called also atomicule.

Example Sentences:

  • (1) It plays the crucial role of giving mass to certain subatomic particles that are the building blocks of matter.
  • (2) From previous work, the Higgs boson was thought to have a mass somewhere between 114 and 185GeV (gigaelectronvolts) – one GeV is roughly equivalent to the mass of a proton, a subatomic particle found in atomic nuclei.
  • (3) The scientists who last month appeared to have found that certain subatomic particles can travel faster than light have fine-tuned their experiment to check whether the remarkable discovery is correct.
  • (4) To find the Higgs particle, physicists at Cern sifted through the subatomic debris of more than 1,000 trillion proton collisions inside the Large Hadron Collider.
  • (5) Further discussions on the nature of symmetry (this time in subatomic particles) and the latest mathematical thinking behind the properties of black holes followed Wilczek.
  • (6) These microscopic fireballs of energy condense into well known subatomic particles, but scientists hope that among them they will see other more exotic particles, including the Higgs boson .
  • (7) As the temperature is raised, the internal volume change does not come from the large, atom-sized internal cavities in the structure but from an increase in the small, subatomic free volumes between atoms.
  • (8) Two teams of scientists at Cern , amounting to thousands of people, carried out the painstaking work of spotting traces of the particle amid the subatomic debris of more than a thousand trillion collisions inside the Large Hadron Collider.
  • (9) This is all so far beyond our comprehension that it can only be tapped through rigorous science, and we can only goggle at it because we don’t really understand how subatomic science works, and what meaning it has – if it has any meaning.
  • (10) Seeing a subatomic particle, such as an electron, is not so simple.
  • (11) The scientists who appeared to have found in September that certain subatomic particles can travel faster than light have ruled out one potential source of error in their measurements after completing a second, fine-tuned version of their experiment.
  • (12) Space weather is an umbrella term for the subatomic particles and electromagnetic energy that reaches Earth from the sun.
  • (13) A fundamental subatomic particle, the neutrino, seems to be capable of travelling faster than the speed of light (that is, the speed of a photon through a vacuum).
  • (14) The world's most powerful atom smasher hunts for signs of new physics by slamming subatomic particles together at nearly the speed of light in an 18-mile round tunnel beneath the French-Swiss border.
  • (15) Although many examples can be found in the literature dating back half a century, there is still no widespread acceptance that quantum mechanics, that baffling yet powerful theory of the subatomic world, might play an important role in biological processes.
  • (16) Take the recent question of whether neutrinos, a type of near-massless subatomic particle, can travel faster than light.
  • (17) A fundamental subatomic particle, the neutrino, seems to be capable of travelling faster than the speed of light .
  • (18) The idea that subatomic particles can travel faster than the speed of light in contravention of the currently accepted laws of physics has been dealt a serious blow by researchers who share the lab of the team that made the original finding.
  • (19) One GeV is roughly equivalent to the mass of a proton, a subatomic particle found in atomic nuclei.
  • (20) In their original experiment, reported in September , scientists fired beams of subatomic particles called neutrinos through the ground from Cern near Geneva to a lab in Gran Sasso, Italy, 450 miles (720km) away.

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