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Chemistry A
Particles
OCR
J248
Particles
Understand the particle model and its application in explaining different states of matter.
Represent the arrangement of particles in different states using the particle model.
Explain observations during changes of state using the particle model.
Analyze why different materials have different properties based on particle arrangement and bonding.
Understand that elements consist of a single type of atom, while compounds consist of combined atoms of different elements.
The particle model
Utilize the particle model to describe the arrangement of particles in solids, liquids, and gases.
Explain the limitations of the simple particle model, specifically regarding the explanation of unique material properties.
Distinguish between elements and compounds based on atomic composition.
4 Subtopics
1
Structural Representations
Revise
2
Features of the Particle Model
Revise
3
Physical vs Chemical Changes
Revise
4
Limitations of the Particle Model
Revise
Atomic structure
Define an atom as the smallest component of an element that retains the element's properties.
Describe the current model of atomic structure, including protons, neutrons, and electrons.
Understand the composition of the nucleus and the arrangement of electrons.
Explain the relationship between the number of protons and electrons in neutral atoms.
Distinguish between atoms of different elements and isotopes of the same element.
7 Subtopics
1
Atomic Scale Relations
Revise
2
Scale Estimation
Revise
3
Evolution of the Atomic Model
Revise
4
Nuclear Atom Structure
Revise
5
Atomic Dimensions
Revise
6
Subatomic Particles
Revise
7
Subatomic Calculations
Revise
