Electrical Conductivity of Metals - GCSE Chemistry | kayscience.com скачать в хорошем качестве

Electrical Conductivity of Metals - GCSE Chemistry | kayscience.com

Visit www.KayScience.com for access to 800+ GCSE science videos, quizzes, exam resources AND daily science and maths LIVE TUITION!!! In this video you will learn all the science for this topic to get a grade 9 or A* in your science exams! Metals are found to the left of the stepped line in the periodic table. Metals have 1, 2 or 3 electrons in their outer shell. Metals have a giant metallic lattice structure as they consist of positive metal ions held in a fixed position with a sea of delocalised electrons that move randomly throughout the metal. These delocalised electrons have temporarily left the outer shell where they move throughout the metal. Metals can conduct electricity because they have delocalised electrons which are free to move throughout the metal. Electrons normally move randomly in all directions, however if a potential difference is applied the electrons will flow from the positive terminal to the negative terminal in one direction, transferring energy. An electric current is created which is the flow of electrons per second. All content, music, images, worksheets are the property of kayscience.com We aim for you to get 100% in your exam by revising and learning with KayScience.