ATOMS And ELEMENTS
ATOM
VOCABULARY
Use the TITLE PAGE diagram to draw an
atom and label all parts shown.
Matter – has mass and occupies space
Substances – specific forms of matter
Elements – simplest natural substances
Particle – the smallest piece of a substance
Atom – basic particle of an element.
(Not in substances, substances made of)
proton
neutron
electron
nucleus
electron cloud
valence elctrons
quantum theory
The number of electrons and protons is
always the _________.
Most of the atoms volume and mass is the
__________.
Make a simple chart to show charges and
location of all subatomic particles
Atom
location charge
Job
part
eletron
Proton
neutron
Electron cloud, Energy levels, Shells
Valence electron
Question:
IF a substance is composed of all the same
kind of atoms arranged in one particular
way, how is this substance best classified.
A. element
B. compound
C. mixture
D. particle
Elements – basic substances that cannot
be broken into simpler substances.
Draw the square of the Periodic Table for
Oxygen
94 different elements occur naturally on
earth.
Bohr Model
Combine to form substances. Every
different combination of elements forms a
different substances.
Lewis Dot Structure
Draw Hydrogen, Helium and Carbon