The halogens are elements in Group 7. Bromide is in Group 7. How many electrons are there in the outer shell of a bromine atom? (1 mark)
7 electrons.
MS
Related Chemistry GCSE answers
All answers ▸Calculate the enthalpy of formation of water.Is the reaction an exothermic or endothermic reaction?
Explain the trends in first ionisation energy in the second period in the periodic table.
Put these elements in ascending order of reactivity: Sodium, carbon, aluminium, copper, zinc, and then using your answer explain which elements can be extracted from their ores by carbon.
What is the function of a catalyst in a chemical reaction?