Examlex
Match each of the data flow diagramming symbols with corresponding examples.(Answers may occur more than once.)
-Data can move directly from an outside source to a data store.
Atom
The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, and surrounded by electrons.
Element
is a substance that cannot be broken down into simpler substances by chemical means, consisting of atoms with the same number of protons.
Proton
A subatomic particle found in the nucleus of an atom, carrying a positive electric charge and contributing to the atomic number and mass of the atom.
Neutron
A subatomic particle found in the nucleus of an atom that has no electrical charge and a mass slightly larger than that of a proton.
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