Periodic Trends

AP Chemistry· difficulty 1/5

Group 17 (halogens) typically form ions with charge

  • A

    +7

  • B

    -1

    check_circle
  • C

    -7

  • D

    +1

Explanation

Halogens gain 1 electron to complete their valence shell, forming -1 anions (F⁻, Cl⁻, Br⁻, I⁻).

Want 10 more like this — adaptive to your weak spots?

Related questions