CHMA10H3 Chapter 7: book notes for chapter 7

• School: UTSC
• Department: Chemistry
• Course: CHMA10H3
• Professor: Ann Verner

Document Summary

Chapter 7: the quantum- mechanical model of an atom. Quantum mechanics: the theory that explains the behavior of the absolutely small: quantum- mechanical model: a model that explains how electrons exist in atoms and how those electrons determine the chemical and physical properties of elements. Light travels faster than sound that"s why we see lightning before we hear thunder. Low-frequency light does not eject electrons because no single photon has the minimum energy necessary to dislodge the electron. Atomic spectroscopy: the study of the electromagnetic radiation absorbed and emitted by atoms: when an atom absorbs energy (heat, light or electricity), it often reemits that energy as light. Wave nature of matter: the de broglie wavelength, the uncertainty principle and. The interference pattern is not caused by pairs of electrons interfering with each other, but rather by single electrons interfering with themselves.