Atoms & Periodic Table
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The smallest particle of an element that has
the chemical properties of the element.
Atoms are made of three smaller units known
as subatomic particles: protons, neutrons, &
Particle Charge Location
Proton Positive In the nucleus
Neutron Neutral In the nucleus
All atoms of the same element have the
same number of protons.
Atoms of the same element that have the
same number of protons but different
number neutrons are called ISOTOPES.
Key to Periodic element
Atomic Number - # of protons
Element Symbol - shorten version of name
Element Name - what we call the element
Atomic Mass - mass of protons & neutrons
(see board diagram)
Read pages 115-122
Answer Section Review Qs 1-4 p. 120
Answer Section Review Qs 1-5 p. 123