How Does Fluorine Shielding Increase

• In fluorine, nuclear charge increase.
• In fluorine shielding increase.
• In fluorine, atomic radius increase.
• In fluorine shells increase and it almost react with anything.

In chlorine as you go down the group the nuclear charge increases, the shielding decreases, the atomic radius decreases and the shells decreases.

Chlorine is less reactive than fluorine because the outer electrons in a chlorine atom are further from the nucleus than the outer electrons in a fluorine atom. It is harder for a chlorine atom to gain an electron than it is for a fluorine atom.
The reactivity of Group 7 elements decreases down the group. Non-metal atoms gain electrons when they react with metals. When a halogen atom reacts, it gains one electron into