Atomic Models & Structures
Atomic Models & Structures
Atomic Models & Structures
what you'll learn
Lesson details
Units 1 & 2 (Atomic Models and Structures)
Focus on understanding the historical development of atomic theory, key atomic models, subatomic particles, isotopes, and the arrangement of electrons in atoms.
Unit 1: Early Atomic Models and Subatomic Particles
1.1 Historical Development of Atomic Theory
Dalton’s Atomic Theory: atoms as indivisible particles
Thomson’s Plum Pudding Model: discovery of electrons
Rutherford’s Nuclear Model: gold foil experiment and nuclear atom
Bohr’s Model: quantized electron orbits
1.2 Subatomic Particles
Properties of Protons, Neutrons, and Electrons (mass, charge, location)
Isotopes: atoms with same protons but different neutrons
Atomic Number, Mass Number, and Notation of Isotopes
Unit 2: Electron Arrangement and Atomic Structure
2.1 Quantum Model of the Atom
Limitations of Bohr’s model
Introduction to Quantum Mechanical Model and orbitals
Electron cloud concept and probability distributions
2.2 Electron Configuration
Energy levels and sublevels (s, p, d, f)
Aufbau Principle, Pauli Exclusion Principle, Hund’s Rule
Writing electron configurations for elements
2.3 Atomic Structure and Periodic Properties
Relationship between atomic structure and periodic table arrangement
Trends in atomic size, ionization energy, and electronegativity explained by electron arrangement
Units 1 & 2 (Atomic Models and Structures)
Focus on understanding the historical development of atomic theory, key atomic models, subatomic particles, isotopes, and the arrangement of electrons in atoms.
Unit 1: Early Atomic Models and Subatomic Particles
1.1 Historical Development of Atomic Theory
Dalton’s Atomic Theory: atoms as indivisible particles
Thomson’s Plum Pudding Model: discovery of electrons
Rutherford’s Nuclear Model: gold foil experiment and nuclear atom
Bohr’s Model: quantized electron orbits
1.2 Subatomic Particles
Properties of Protons, Neutrons, and Electrons (mass, charge, location)
Isotopes: atoms with same protons but different neutrons
Atomic Number, Mass Number, and Notation of Isotopes
Unit 2: Electron Arrangement and Atomic Structure
2.1 Quantum Model of the Atom
Limitations of Bohr’s model
Introduction to Quantum Mechanical Model and orbitals
Electron cloud concept and probability distributions
2.2 Electron Configuration
Energy levels and sublevels (s, p, d, f)
Aufbau Principle, Pauli Exclusion Principle, Hund’s Rule
Writing electron configurations for elements
2.3 Atomic Structure and Periodic Properties
Relationship between atomic structure and periodic table arrangement
Trends in atomic size, ionization energy, and electronegativity explained by electron arrangement
Units 1 & 2 (Atomic Models and Structures)
Focus on understanding the historical development of atomic theory, key atomic models, subatomic particles, isotopes, and the arrangement of electrons in atoms.
Unit 1: Early Atomic Models and Subatomic Particles
1.1 Historical Development of Atomic Theory
Dalton’s Atomic Theory: atoms as indivisible particles
Thomson’s Plum Pudding Model: discovery of electrons
Rutherford’s Nuclear Model: gold foil experiment and nuclear atom
Bohr’s Model: quantized electron orbits
1.2 Subatomic Particles
Properties of Protons, Neutrons, and Electrons (mass, charge, location)
Isotopes: atoms with same protons but different neutrons
Atomic Number, Mass Number, and Notation of Isotopes
Unit 2: Electron Arrangement and Atomic Structure
2.1 Quantum Model of the Atom
Limitations of Bohr’s model
Introduction to Quantum Mechanical Model and orbitals
Electron cloud concept and probability distributions
2.2 Electron Configuration
Energy levels and sublevels (s, p, d, f)
Aufbau Principle, Pauli Exclusion Principle, Hund’s Rule
Writing electron configurations for elements
2.3 Atomic Structure and Periodic Properties
Relationship between atomic structure and periodic table arrangement
Trends in atomic size, ionization energy, and electronegativity explained by electron arrangement
About Author
