Thomson's atomic model is a theory about the atomic structure proposed in 1904 by Thomson, who discovered the electron in 1897, a few years before the discovery of the proton and the neutron.
Hope this helps :))
Answer: X2Y3
Explanation: I had the same question ;) (and got it right)
Answer:
C
Explanation:
They are stabil and full of valence electron.
The number of protons and the electron configuration of each
