41
/
September 30, 2026
1658623
130011
2
Create a timeline
Public Timelines
For organizations
For companies
For educational institutions
For teachers
For students
Dashboard
For educational institutions
For teachers
For students
Dashboard
FAQ
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Dashboard
Pricing
Donate
apr 21, 1932 - Diagram
Description:
A new particle was introduced into the atomic model.
Added to timeline:
Atomic Structure Contribution
By
Ronin Nelson
18 Sep 2018
2
0
774
Date:
apr 21, 1932
Now
~ 94 years ago
Images:
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Pricing
Dashboard
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
