Скачать с ютуб Intro to radioactive decay | Physics | Khan Academy в хорошем качестве

Intro to radioactive decay | Physics | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/h... Want to explore more? Check out the full nuclear physics playlist here:    • Nuclear physics | Physics | Khan Academy   During radioactive decay, an unstable nucleus (the "parent") spontaneously changes to become a different nucleus (the "daughter"), emitting radiation in the process. The nuclear radiation emitted during radioactive decay is high energy, ionizing radiation. Nuclear radiation is potentially dangerous to living things but also has many beneficial applications. Types of radioactive decay include alpha, beta, and gamma. Sections: 00:00 - Intro 00:22 - Chemical reactions don't change elements 01:35 - Nuclear composition 02:11 - Isotopes 04:00 - What is radioactivity? 05:38 - Example of radioactive decay 06:40 - Ionizing radiation ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate here: https://www.khanacademy.org/donate?ut... Volunteer here: https://www.khanacademy.org/contribut...