What the structure of an atom, and how is the charge and mass calculated?
Structure - central nucleus of protons and neutrons orbited by electrons
Charge - proton = +1, neutron = 0 and electron = -1
Mass - number of protons + number of neutrons
BS
Related Chemistry GCSE answers
All answers ▸Describe the trend in reactivity down group 1 of the periodic table.
Why does grinding a solid reactant down into smaller lumps increase the rate of a reaction? (2/3 marks)
Sodium Hydroxide can react with sulfuric acid in an acid base reaction. Outline the equation for this reaction, name the product. Finally a titration reaction is conducted. Determine the mass of NaOH needed to neutralise 12.4cm^3 of 0.10moldm^-3 H2SO4.
Name two types of chemical bonds and describe each type in terms of their bonding structure and properties