Answer:

ATOM

Answer	Crossword Clue
ATOM	Energy source
ATOM	Molecule builder
ATOM	Nuclear energy source

ATOM	Reactor factor
ATOM	Source of power
ATOM	Tiny particle
ATOM	Basic component
ATOM	Basic unit
ATOM	Bit
ATOM	Elementary particle
ATOM	Mighty mite

ATOM	.. smasher
ATOM	Diminutive DC Comics superhero
ATOM	Diminutive DC Comics' superhero
ATOM	Minute particle
ATOM	Nature's building block
ATOM	Power source
ATOM	Smallest unit of an element
ATOM	Unit of matter

ATOM	Food thickener
ATOM	Minute particle of matter
ATOM	Dispenser of sawbucks (or ... basic unit of matter)
ATOM	Split bit
ATOM	Bit of matter
ATOM	Nuclide, e.g.
ATOM	Element component
ATOM	Supercollider bit

ATOM	Democritus' indivisible unit
ATOM	Molecular constituent
ATOM	Molecular unit
ATOM	Unit for Democritus
ATOM	Molecule component
ATOM	Molecule member
ATOM	Elemental unit
ATOM	Film director Egoyan

ATOM	Locus of a quark
ATOM	Smithereen
ATOM	Director Egoyan
ATOM	Splittable bit
ATOM	Small building block