Long answer·Standard multi-step (3/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
Consider the shell .
Total: 5 marks
(a) List all subshells present in this shell. (1 mark)
(b) Find the number of orbitals in each subshell and the total number of orbitals. (2 marks)
(c) Find the maximum number of electrons in the shell. (2 marks)
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