Pearson Edexcel IAL Chemistry AS 2.3 Atomic number & mass number
Pearson Edexcel IAL Chemistry AS 2.3 Atomic number & mass number
Practise interpreting atomic number and mass number from isotope notation and linking them to element identity.
How this is tested
- read isotope notation to identify mass number, atomic number or element symbol
- use atomic number and mass number to distinguish proton and nucleon counts