Vocabulary - Elements And Atoms
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STUDENT RESOURCE 7.1
Vocabulary
INFORMATION SHEET
atom the smallest piece of an
neutron a particle with no charge
element that still has all the
Neutrons are found in the
properties of that element
nucleus of an atom.
An atom is made up of protons,
nucleus the center of an atom
neutrons, and electrons. The
An atom’s protons and neutrons
protons and neutrons are found
are located in the nucleus.
in the nucleus. The electrons move
around the nucleus.
Periodic Table a chart of all the
elements known on Earth
electron a particle with a negative
The elements are arranged
charge
in the table according to their
Electrons circle the nucleus of
properties.
an atom.
proton a particle with a positive
element a substance that is made
charge
up of all the same kind of atom
Protons are found in the
Hydrogen, oxygen, and neon
nucleus of an atom. The “atomic
are some of the over 100 elements
number” of an element tells how
on Earth. Most elements are found
many protons it has in the nucleus
combined with other elements
of its atoms.
in nature. Water is made of one
oxygen atom and two hydrogen
atoms joined together.
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ENERGY AND MATTER • SECTION 7 ELEMENTS AND ATOMS
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