What are Isotopes? | Properties of Matter | Chemistry | FuseSchool скачать в хорошем качестве

What are Isotopes? | Properties of Matter | Chemistry | FuseSchool

What are Isotopes? | Properties of Matter | Chemistry | FuseSchool What are Isotopes? Find out in this video! In a previous video we learnt about Isotopes. Here are a few more examples: There are two isotopic forms of Chlorine: Chlorine 35 and Chlorine 37. Remember isotopes have the SAME number of protons, but a different number of neutrons. So, how many neutrons are in each of these isotopic forms of Chlorine? Remember: Mass Number = Number of Protons + Number of Neutrons, and the number of protons for each isotope forms of elements is the same, so we can rearrange this formula to calculate the number of neutrons in each form: Neutrons = Mass Number - Protons When we look at Chlorine on the periodic table, it has an atomic number of 17. Therefore it has 17 protons. Chlorine-35 has a mass of 35. Neutrons = Mass Number - Protons = 35 -17 = 18 18 neutrons. Chlorine-37 has a mass of 37. Neutrons = Mass Number - Protons = 37 -17 = 20. 20 neutrons. Chlorine-35 has 18 neutrons and Chlorine 37 has 20 neutrons. Another example of an isotope is Lithium. Lithium has two stable isotopic forms. The atomic number of Lithium is 3, therefore it has 3 protons. The isotopes of Lithium have 3 neutrons and 4 neutrons respectively. How do we calculate each of the isotopes mass number? Remember, Mass Number = Number of Protons + Number of Neutrons. So for one isotopic form the mass number would be: 3 + 3 = 6. So, we would have Li-6. And for the other form, the mass number would be 3 + 4 = 7. So we would have Li- 7. SUPPORT US ON PATREON   / fuseschool   SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Find all of our Chemistry videos here:    • CHEMISTRY   Find all of our Biology videos here:    • BIOLOGY   Find all of our Physics videos here:    • PHYSICS   Find all of our Maths videos here:    • MATHS   Instagram:   / fuseschool   Facebook:   / fuseschool   Twitter:   / fuseschool   Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org Follow us:    / fuseschool   Befriend us:   / fuseschool   This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]