Atomic Structure and the Periodic Table · Atomic Structure
Subatomic Particles and Isotopes
An exploration of how protons, neutrons, and electrons define an element's identity and its stability.
Key Questions
- 1How does the arrangement of subatomic particles determine the identity of an element?
- 2What evidence do we have that atoms are not solid, indivisible spheres?
- 3How do isotopes of the same element differ in their physical and nuclear properties?
Common Core State Standards
HS-PS1-1
Grade: 11th Grade
Subject: Chemistry
Unit: Atomic Structure and the Periodic Table
Period: Atomic Structure
Suggested Methodologies
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