Respuesta :

Faiirroz

Answer:

Periodic table block Periodic table group Valence electrons

p Group 15 (V) (pnictogens or nitrogen group) 5

Group 16 (VI) (chalcogens or oxygen group) 6

Group 17 (VII) (halogens) 7

Group 18 (VIII or 0) (noble gases) except helium

Explanation:

CarolineMars1

answer :

any elements in halogen group will have seven valence electrons.

these elements are

  1. fluorine
  2. chlorine
  3. bromine
  4. iodine
  5. astatine

Hope this helps