CHEM I
Atomic History Project
Name _________________________________
I. Timeline wiki
To piece together the story of what we know about the atom, you will be creating a timeline depicting the development of the scientific model
of the atom. It has been through debates by ancient philosophers, new discoveries by physicists and chemists, it has created legendary
scientists, and the power the atom has unleashed, has saved and killed millions of people. Your journey begins 2500 hundred years ago with the
ancient Greeks and will enter into the 1950s where many of the commonly accepted and understood parts of the atom where finally
illuminated. Your assignment is to research the major contributors and significant discoveries that have impacted the atomic model and develop
a timeline in the wiki.
You should work in groups of 2, but you may work alone if you so choose.
Your timeline must include:
PART I. At least 3 scientists from each of the following time periods (there are more than 3 in each time period). For each scientist you include
provide their name, date of birth and death, country of origin, year of their discovery, a 1 paragraph bio, a 1 paragraph discription of their discovery
(be sure to include how their discovery impacted the development of what an atom looked like). A picture or sketch of their discovery or of them
with their discovery/equipment, or just them.
-Ancient Times (450 AD and years prior)
-1700-1800
-1800-1875
-1875-1900
-1900-1915
-1915-1950
You MUST INLCUDE the following scientists (when deciding what era to put them in it depends on when their work was published not by their life
span).
--Neils Bohr
--James Chadwick
--Marie Curie
--John Dalton
--Democritus
--Werner Heisenberg
--Wilhelm C Roentgen
--Robert Millikan
--Henri Becquerel
--Ernest Rutherford
--Erwin Schrodinger
--JJ Thomson
PART II You MUST INCLUDE the following pictoral models of the atom along with a 1-2 paragraph explanation of the model
--Dalton’s model or Small, spherical, solid, indivisible model
--Plum Pudding model
--Rutherford-Bohr model
--Planetary model
--Electron cloud model
Be sure to present things in a chronological order. Clearly show dates. The timeline doesn't have to be to scale, but it must be in order.
The Timeline is worth 50 points.: 5 Points for Ontime Completion, 30 Points for Scientist discoveries and bios, 10 Points for Individual models that
arose, 5Points for properly siting the work, pictures, sounds, and videos
Date Due: Friday October 16
Access first my wiki and in it under your class ChemI you will find a link to the astatomictimeline.wikispaces.com which is the wiki where you will
create and edit your atomic timeline wiki.
Adapted from Reichchemistry.com
II. 3-D Atomic models
The purpose of this part of the project is to create 3-D representations of the following atomic models:
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Solid model
Plum pudding model
Planetary model
Bohrs model
Electron Cloud model
You will be working in teacher assigned groups of 3-4 students. Your 3-D models can be of any material. It has to be placed on a support base, not
greater than 50cm x 65 cm. No perishable food. Should include a 1 paragraph description of the model (its characteristics) and have labels on its
parts.
The 3-D models are worth 50 points: 30 points for models (showing correct description and labeled parts), 10 points for ontime completion, 5
points for working in class (remaining on task and bringing materials), 5 creativity.