Crossword clues for Atomic no. 55:ATOMIt might be involved in an explosive breakupFINGERSCHCHATOMSee 19-AcrossATOMDispenser of sawbucks (or ... basic unit of matter)ATOMSCertain building blocksATOM___ Heart Mother (Pink Floyd record)ATOMUniversal substanceATOMNuclear energy sourceATOMSThey might get smashedATOMSSpecksATOMSplit bitATOMIt's bigger than a baryonATOMSMolecule partsATOMMolecule builderATOMBasic unitATOMBitATOMElementary particleATOMTiny particleATOMWhat the Emmy-statuette lady holdsATOMICKind of energyATOMSource of powerATOMSElemental unitsATOMICKind of clockATOMEnergy sourceATOMIC1979 Blondie singleATOMIt is almost completely empty spaceATOMIts mass is measured in daltonsATOMBasic componentATOMDiminutive DC Comics superheroATOMMinute particleATOMNature's building blockATOMPower sourceATOMSmallest unit of an elementATOMUnit of matterATOMSParticlesATOMMighty miteATOMReactor factorATOM__ smasherATOMIt was first split at Cambridge in 1932ATOMQuark's placeATOMSA water molecule has threeATOMISMLucretius's theoryATOMFood thickenerATOMMinute particle of matterATOMISMLeucippus's theoryATOMSParticle-beam particlesATOMSmall matter?ATOMSpeck with a nucleusATOMBit of physics?ATOMUnit that's dangerous to divideATOMIt makes everything matter