18
/
en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
102257
9306
2

feb 10, 1914 - Henry Moseley labeled the elements with atomic numbers based upon the number of electrons in an atom rather than on their atomic mass.

Added to timeline:

3 Oct 2017
0
0
122
History of the Periodic Table
Lily Heavner
Period 4

Date:

feb 10, 1914
Now
~ 104 years ago
PayPal - The safer, easier way to pay online!logo
About & FeedbackTermsPrivacy