Fundamental Ideas in Chemistry

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🏆 Topic Mastered! You have completed all learning objectives for Fundamental Ideas in Chemistry.

Particles and State Changes

I can represent solids, liquids and gases using the particle model. I can write equations with state symbols to represent state changes.

Atoms, Elements, Compounds and Mixtures

I can define the terms atom, element, compound and molecule. I can recall different separation techniques: filtration, distillation, sieving, evaporation, separating funnel, fractional distillation and chromatography. I can select the correct separation method based on the type of mixture.

Atomic Structure

I can recall the key points in the history of the atomic model. I can describe and explain the results of the alpha-particle scattering experiment. I can name the subatomic particles: protons, neutrons and electrons. I can give the relative mass, relative charge and location in an atom for each subatomic particle. I can draw the arrangement of electrons in an atom and represent this using electron configuration.

Chemical Equations

I can balance chemical equations for simple reactions.

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Notes

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Notes

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Top Tips

Alpha-particle scattering: most went through = mostly empty space; some deflected = mass/charge in centre of atom.
Don't talk about protons, neutrons or nucleus when describing the alpha-particle scattering because they weren't discovered yet!
Learn your table of relative mass, relative charge and position in atom!

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