Name: Class Set
Date:
Per:
Close your eyes and visualize an atom. Sketch your visualization below. Label
anything that you feel is significant in your drawing.
Why do you think this is how an atom looks?
What scientists think the atom looks like:
NOT TO SCALE!!!!!!!
The reasons why scientist think the atom looks this way:
Our theory of what an atom looks like is based on experiments and
observations that scientists have made over the years.
What were some similarities between your sketch and the current model?
What were some differences between your sketch and the current atomic
model?
Word
Atom
Definition
(preferably in your own words)
Sketch or Example
The building blocks of the universe. The
smallest functional piece of matter.
Proton
The positive parts of an atom. The protons
are found in the nucleus (center part) of the
atom.
See picture on front
Neutron
The neutral parts of an atom. The neutrons
are found in the nucleus (center part) of the
atom.
See picture on front
Nucleus
Electron
The central part of an atom made of protons
and neutrons.
The negative parts of an atom. The electrons
orbit the nucleus in random paths in the
electron cloud.
See picture on front
See picture on front
When two or more atoms are stuck (bonded)
together.
O2 Oxygen
O3 Ozone
N2 Nitrogen
Compounds
When two or more DIFFERENT TYPES of
atoms are stuck (bonded) together.
NaCl Sodium
Chloride(Table Salt)
H2O Water
Element
Matter that is made up of ONE TYPE of
atom.
Gold
Neon
Silver
Molecule
Periodic Table A table that has all of the different types of
atoms (elements) organized based on their
of the
properties/characteristics.
Elements