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ELEMENT MOLECULES AND COMPOUND MOLECULES
or more atoms join together, they form a molecule. There are two basic
types of molecules: elements and
Here is one way to construct models of each of the two types of molecule:
medium-sized styrofoam balls. (Each ball represents a carbon atom.) Join
the styrofoam balls
When four carbon atoms join together in this way, they form one molecule of carbon.
made up of two different kinds of atoms: one sodium atom and one chlorine
atom joined side by side make one molecule of salt. Construct a model
of a salt
balls together with wire so that a sodium and a chlorine atom are always
side by side, up and down, in front and in back of each other (the molecules
The molecular structure of compounds is made up of more than one kind of atom.
(Compare the models for similarities and differences.)
From the comparisons you will find that some models are made up of atoms that are all the same kind (elements), while others are made up of different kinds of atoms (compounds).
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