Answer:
No, they don't because of fact some way more than the other even if it's the same type of element.
Explanation:
There are two types of element weight I think.
Answer:
electron: orbiting around the nucleus
proton: inside the nucleus
neutron: inside the nucleus
Answer:
I believe the answer is B
Explanation:
to be honest i'm not completely sure, sorry
The largest atomic radius has Ba,because they are all metals of 2nd group,but as you know when you go down upright in the periodic table the metallic features getting stronger but also orbital layers increasing,and you can say more layers larger atomic radius.Hope I helped,sorry for English