Atomic structure topic plan · A-Level Chemistry 9701

Unit at a glance

6 lessons, 270 minutes of teaching

Lessons

6, each planned for 45 minutes

Worksheets

6 with answer keys

Quiz questions

48 multiple-choice, assignable in the app

Lab

Atomic structure lab

Scheme of work

Ref	Lesson pack	Structure	Worksheet	Quiz	Lab tab
1.1	Particles in the atom An atom is a tiny, dense, positively charged nucleus wrapped in a cloud of electrons about ten thousand times wider.	Connect-Extend-Challenge	6 Q, 18 marks	8 MCQ	tab 1, tab 7
1.1	Atomic and ionic radius Three things set the size of an atom: how strongly the nucleus pulls, how many shells the electrons occupy, and how much the inner electrons shield the outer ones.	Anticipation / Reaction Guide	6 Q, 17 marks	8 MCQ	tab 8
1.2	Isotopes Two atoms can share a proton number and still weigh differently.	Cooperative Concept Mapping	6 Q, 14 marks	8 MCQ	tab 2
1.3	Shells, orbitals and electron configuration Shells split into sub-shells, sub-shells into orbitals, and every orbital holds two electrons.	Think-Pair-Share	6 Q, 15 marks	8 MCQ	tab 3, tab 4
1.3	Ionisation energy and its trends First ionisation energy measures how tightly an atom holds its outermost electron.	Mix-Pair-Share	6 Q, 14 marks	8 MCQ	tab 6
1.3	Successive ionisation energies and electron affinity Strip the electrons from one atom one at a time and the energy needed climbs steadily, then leaps every time you break into a new shell.	Jigsaw	6 Q, 15 marks	8 MCQ	tab 5

Each pack holds the plan, worksheet and quiz for its lesson. Teach the rows in order; the lab tabs match the student lessons.

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