Methodical recommendation:

Theory

Number Name Description
1. Structure of the atom A theoretical material explains the atomic number, mass number and electronic configuration of atoms

Practice Questions

Number Name Type Difficulty Marks Description
1. Symbols for elements Other easy 1 m. The student has assertion reasoning question about symbols of elements. As an outcome of the exercise, the student will learn about the mentioned concepts.
2. Bohr–Bury rules for electron distribution Other easy 2 m. This exercise contains multiple choice questions and answers, holding two marks. The student has to choose the correct answer related to Bohr–Bury rules for electron distribution.
3. Stability of the atom Other easy 1 m. This exercise contains multiple choice questions and answers, holding two marks. The student has to choose the correct answer related to stability of the atom.
4. TBQ -Finding the properties of an element Other medium 4 m. An exercise consisted of choosing the correct answer type questions about identifying elements Based on atomic number and valence Electrons .
5. TBQ - Case study on electronic configuration, valence electrons and valency Other hard 3 m. An exercise consisted of selecting the correct answer type questions related to the case study on electronic configuration, valence electrons and valency.
6. TBQ - Valence electrons Other medium 2 m. This exercise contains multiple choice questions and answers, holding two marks. The student has to choose the correct answer for valence electrons.
7. TBQ - Isotopes and applications Other hard 5 m. An exercise consisted of problem-solving questions about calculating the mass number of an given atomic species.
8. Calculation of percentage of isotopes Other medium 2 m. The student has very short answer questions about the calculation of percentage of isotopes. As an outcome of the exercise, the student will learn about the mentioned concepts.
9. Comparison between isotopes and isobars Other medium 3 m. The student has long answer type question about the difference between the comparison between isotopes and isobars. As an outcome of the exercise, the student will learn about the mentioned concepts.