Inorganic Chemistry - Group 7 (Paper 2)

Question 1

what is the trend in reactivity in group 7 and why?

Answer 1

• the higher up we go in group 7 (halogens) of the periodic table, the more reactive the element
• when the outer electron shell is very close to the positively charged nucleus, the attraction between this nucleus and the negatively charged electrons is very strong
• this means it’s very reactive indeed