Explain why chloride and bromide are in the same group in the period table. Also describe the electronic structures of both.
They have the same number of 'free electrons' in their outer ring. They both have 7 free outer electrons, this means that all group 7 elements have 7 free outer electrons.
BP
Related Chemistry GCSE answers
All answers ▸For the reaction (hydrochloric acid + magnesium -> magnesium chloride + hydrogen) what would happen to the rate of reaction if the solid magnesium was cut into smaller pieces? Explain the change (4)
The acid dissociation constant, Ka, of ethanoic acid is 1.78 x 10^-5 at 298K. Given that the concentration of a sample of ethanoic acid is 0.4moldm^-3, calculate its pH at 298K.
Complete the balanced equation for the overall reaction in a hydrogen fuel cell. _ H2 + ___ > _ H2O
What is an isotope?