33
/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
September 30, 2024
Public Timelines
Menu
Public Timelines
FAQ
Public Timelines
FAQ
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
Create
Close
Create a timeline
Public timelines
Library
FAQ
Download
Export
Duplicate
Premium
Embed
Share
chem timeline
Category:
Other
Updated:
24 Mar 2021
0
0
172
Contributors
Created by
Amelie Qwerty
Attachments
Comments
Events
john dalton – atoms and elements
Dmitri Mendeleev – periodic table
Jean Baptiste Perrin – proving atoms exist
JJ Thomson – discovering the electron
Ernest Rutherford – discovering the nucleus
Henry Moseley – atomic number
Francis William Aston – discovering isotopes
Niels Bohr – electron energy levels
James Chadwick – discovering neutrons
Periods
Democritus – particulate matter
About & Feedback
Terms
Privacy
Library
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Comments