Modern Periodic Table: Atomic Number & Shells
Students will understand the modern periodic table's organization based on atomic number and the arrangement of electrons in shells.
Key Questions
- Explain why the modern periodic table is arranged by atomic number rather than atomic mass.
- Analyze how the number of electron shells determines an element's period.
- Differentiate between groups and periods in terms of outer electron shells and general properties.
National Curriculum Attainment Targets
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
Planning templates for Chemistry
More in Atomic Structure and the Periodic Table
Early Atomic Models: Dalton to Thomson
Students will analyze the contributions of early scientists like Dalton and Thomson to the understanding of atomic structure, focusing on experimental evidence.
2 methodologies
Rutherford's Gold Foil Experiment
Students will investigate Rutherford's groundbreaking experiment and its implications for the nuclear model of the atom.
2 methodologies
Bohr Model and Electron Shells
Students will explore the Bohr model, understanding electron energy levels and their role in atomic stability and light emission.
2 methodologies
Subatomic Particles and Atomic Number
Students will identify protons, neutrons, and electrons, and relate their numbers to atomic number, mass number, and elemental identity.
2 methodologies
Isotopes and Relative Atomic Mass
Students will define isotopes and calculate relative atomic mass from isotopic abundances.
2 methodologies