1. (Continued)
To further understand the relations of elements, molecules, and atoms, study the illustrations
below.
A molecule of water consists of three atoms of two different elements: two atoms of hydrogen and
one of oxygen. If a molecule of water were broken down any further (into atoms), the
characteristics of water would disappear, leaving only three atoms of two unrelated elements.
Match each term in column A with its definition in column B.
A
B
____(1) Molecule.
a.
The smallest particle of an element that retains
the identify of the element.
____(2 ) Element.
b.
The smallest particle of a substance that retains
the characteristics of the substance.
____(3) Atom.
c.
A substance that cannot be broken down into a
simpler substance by any chemical means.
IT0341
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