29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
124934
40630
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
20th century scientists found why properties of elements reoccur periodically (11h 55min, jan 1, 1900 y – 14h 57min, dec 31, 1999 y)
Added to timeline:
26 Dec 2017
0
0
446
History of the Periodic Table
Date:
11h 55min, jan 1, 1900 y
14h 57min, dec 31, 1999 y
~ 100 years
Images:
