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2 courses
Periodic Trends in Properties
Chemistry · High School (11–12) · Periodic Trends, Groups and Families
FreeCh 3 · 2/2
How the size of atoms and ions, the ionisation enthalpy, the electron gain enthalpy and the electronegativity change across a period and down a group, and how they decide valence and reactivity.
3Lessons11Problems2Python Labs1Question Set1Mock Test
Patterns Across Periods and Down Groups
Chemistry · High School (9–10), General · Periodic Trends, Electronic Configuration and Valency
FreeCh 9 · 2/4
Why does carbon make four bonds and oxygen two? Why is a sodium atom bigger than a chlorine atom? In this course we find the valency, the size, the metallic character and the oxides of the elements, and how they change across a period and down a group.
3Lessons10Problems2Python Labs1Question Set1Mock Test