Answer: I don't think you can delete questions tho sorry
Endocrine system im pretty sure
Answer:
They would be proportional.
Explanation:
Electronegativity and ionization energy go hand in had. The more strongly an atoms pulls electrons to itself (electronegativity) the harder it will be to pick the electrons off (ionization energy). Therefore, the graphs would be proportional.
EN is the tendency of atom to attract the bonding pair of elecrons toward itself so as we move across period the size of atom remains same and nuclear charge increses so it can attract valance shell more tightly toward it and also the bonding pair which is formed and its vice versa in group