Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

Go to Periodicity. What happened in 1868?
O John Dalton devised a way to measure an element atom's relative mass.
O Dmitri Mendeleev discovered the proton.
O Dmitri Mendeleev discovered a periodicity of the elements.
Dmitri Mendeleev discovered the electron.


Sagot :