Edexcel IGCSE Chemistry 1.16 Atomic number & isotopes
Practise using atomic number, mass number and isotope notation to compare atoms, elements and relative atomic mass.
- Syllabus
- First assessment 2019
- Course
- Chemistry 4CH1
Exam points
- state isotopes as atoms with the same protons but different neutrons
- use atomic and mass numbers to find protons, neutrons and electrons
- explain identical chemical properties from the same electron configuration
1.16 Atomic number and isotopes question 1
This question is about Group 2 elements and their compounds.
A sample of magnesium contains three isotopes.
State, in terms of subatomic particles, what is meant by the term isotopes.
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