MCAT Basics (from MedSchoolCoach) Atomic Chemistry
Oct 9, 2025
Dive into atomic chemistry with fascinating insights on quantum theory, hybridization, and molecular geometry. Explore the complexities of electron configuration and periodic trends, vital for MCAT preparation. Discover how nuclear decay affects atomic structure, from alpha to beta and gamma decay. Sam also clarifies concepts like Hund's Rule and the Pauli Exclusion Principle while emphasizing the significance of the periodic table. Perfect for aspiring medical professionals eager to master these core concepts!
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Electrons Are Probability Clouds
- Electrons behave as probability clouds rather than planetary orbits around the nucleus.
- Quantum wave functions give the probability density that defines atomic orbitals.
Know Orbital Shapes And Scope
- Atomic orbitals come in s, p, d, and f shapes with increasing complexity.
- The MCAT focuses on s, p, and d shapes; f orbitals are out of scope.
Fill Configurations From The Periodic Table
- Use the periodic table blocks to fill electron configurations from lowest energy up.
- Start at 1s and follow Aufbau ordering across blocks until you reach the element.