What are atoms?

Some articles on atoms, atom:

Antiprotonic Helium - Laser Spectroscopy
... Antiprotonic helium atoms are under study by the ASACUSA experiment at CERN ... In these experiments, the atoms are first produced by stopping a beam of antiprotons in helium gas ... The atoms are then irradiated by powerful laser beams, which cause the antiprotons in them to resonate and jump from one atomic orbit to another ...
... with chemical formula C5H10 and CAS number 287-92-3, consisting of a ring of five carbon atoms each bonded with two hydrogen atoms above and below the plane ... being alkanes that have one or more rings of carbon atoms ...
Gallium(II) Telluride
... Each gallium atom is tetrahedrally coordinated by 3 tellurium and one gallium atom ... The core consists of a cube of eight atoms, four gallium, and four tellurium atoms ... has an attached t-butyl group and three adjacent tellurium atoms and each tellurium has three adjacent gallium atoms ...
Sigmatropic Reaction - Overview of Sigmatropic Shifts - Woodward-Hoffman Sigmatropic Shift Nomenclature
... or more π systems to a new position (i-1) and (j-1) atoms removed from the original location of the σ-bond ... i and j is an even number, this is an indication of the involvement of a neutral, all C atom chain ... is an indication of the involvement of a charged C atom or of a heteroatom lone pair replacing a CC double bond ...
Azane - Isomerism
... Azanes with more than three nitrogen atoms can be arranged in various different ways, forming structural isomers ... The simplest isomer of an azane is the one in which the nitrogen atoms are arranged in a single chain with no branches ... However the chain of nitrogen atoms may also be branched at one or more points ...

Famous quotes containing the word atoms:

    The atoms of Democritus
    And Newton’s particles of light
    Are sands upon the Red Sea shore,
    Where Israel’s tents do shine so bright.
    William Blake (1757–1827)

    Scatter my ashes, strew them in the air:
    Lord since thou know’st where all these atoms are,
    I’m hopeful thou’lt recover once my dust,
    And confident thou’lt raise me with the just.
    —James Graham Marquess of Montrose (1612–1650)

    Moreover, the universe as a whole is infinite, for whatever is limited has an outermost edge to limit it, and such an edge is defined by something beyond. Since the universe has no edge, it has no limit; and since it lacks a limit, it is infinite and unbounded. Moreover, the universe is infinite both in the number of its atoms and in the extent of its void.
    Epicurus (c. 341–271 B.C.)