Atoms vs. elements Classify the following as descriptive of an element or an atom.
Atom
Element
92 occur naturally
All have an atomic mass
All have an atomic number
The smallest unit to enter chemical
reactions
One of the basic building blocks of
matter, cannot be broken down by
chemical means
Smallest unit of matter that retains the
physical properties of an element
Arranged by atomic number into a
periodic table
Can be split