CHEM 1114 Lecture 1: Section7.1-TheNatureOfLightChapter7-QuantumTheoryandAtomicStructure-2
Document Summary
To understand current atomictheory, you need to know about electromagnetic radiation. Visible light, x-rays, radio waves, and microwaves are some of the types of electromagnetic radiation, all of which consists of energy propagated by electric and magnetic fields that increase and decrease in intensity as they move, wavelike, though space. This classical wave model explains why rainbows form, how magnifying glasses work, and many other familiar observations. But it cannot explain observations on the very unfamiliar atomic scale. In this section, we describe some properties of electromagnetic radiation and note how they are distinguished from the properties of matter. But, ew will see that some properties blur the distinction between energy and matter, requiring a new model to explain them. In a vacuum, electromagnetic radiation moves at 2. 99792458 x 10 8 m/s (3. 00 x. All waves of electromagnetic radiation travel at the same speed through a vacuum but differ in frequency and, therefore, wavelength.
