J. J. Thomson is the corect awncer
Letter d, because they are both alkali metals (group one)
Answer:definition group 17, halogens top right on the periodic table
Explanation:
I’m looking at it
so basically a atom type contains the same number of protons. Chemical bonds put elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds. Elements can't be divided into smaller units not using large amounts of energy.
hope this helped ur boi- Johnny Joestar
