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2C - Inorganic Chemistry (b) Group 7 (halogens) - chlorine, bromine and iodine
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Total cards: 1•Content version: v3•Public deck•Updated: 8/1/2026
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#1
Front (Question)
Why does reactivity increase as you go up group 7?
Back (Answer)
The outer shell of electrons is closer to the nucleus. As halogens need to gain one electron, the closer the outer shell is to the nucleus, the stronger the force of attraction, and the easier it is for the atom to attract another electron and gain a full outer shell.