I think it would be penicillin as it saved many lives in its time and ours.
Both of them have high electronegativity. Hence they both tend to gain electrons to gain stability.
Answer:
Argon (Ar) is smallest element in 3rd period in periodic table.
1. c
2. a
3. a
(I’m not 100% but 2 & 3 couldn’t be transform)
