Learn about the parts of an atom, their mass, and their charge, in this video from the Properties of Matter chapter FuseSchool Chemistry. 0:00:01,220 -- 00:00:07,500 we already know that atoms are really 00:00:04,050 -- 00:00:09,389 small but we can get smaller if we zoom 00:00:07,500 -- 00:00:12,509 into an atom we find that is made up of 00:00:09,389 -- 00:00:16,080 protons, neutrons and electrons and a lot 00:00:12,509 -- 00:00:18,780 of empty space. Imagine an Olympic 00:00:16,080 -- 00:00:21,420 swimming pool: 50 metres wide, this is our 00:00:18,780 -- 00:00:24,180 atom. At the centre of our atom is the 00:00:21,420 -- 00:00:27,810 nucleus, the nucleus is made up of 00:00:24,180 -- 00:00:30,300 protons and neutrons but if we jumped 00:00:27,810 -- 00:00:32,189 into the pool to find the nucleus it 00:00:30,300 -- 00:00:36,780 would be pretty much impossible because 00:00:32,189 -- 00:00:38,880 it is a size of a grain of sand. Around 00:00:36,780 -- 00:00:41,520 the nucleus you find that electrons are 00:00:38,880 -- 00:00:43,020 randomly whizzing around, the electrons 00:00:41,520 -- 00:00:45,540 are even smaller than protons and 00:00:43,020 -- 00:00:48,360 neutrons. so, say we only have two 00:00:45,540 -- 00:00:50,100 electrons in our atom these would be 00:00:48,360 -- 00:00:52,980 randomly moving around our grain of sand 00:00:50,100 -- 00:00:55,410 in our 50 meter pool just these two tiny, 00:00:52,980 -- 00:01:01,110 tiny electrons. so, what does that leave? a 00:00:55,410 -- 00:01:02,579 lot of empty space! Now, if we think about 00:01:01,110 -- 00:01:04,800 the minuscule scale that we're talking 00:01:02,579 -- 00:01:08,729 about the constituents of an atom must 00:01:04,800 -- 00:01:11,070 have a minuscule scale to match if we 00:01:08,729 -- 00:01:15,420 were to weigh protons we would need 600 00:01:11,070 -- 00:01:17,520 sextillion to just weigh one gram so one 00:01:15,420 -- 00:01:19,440 proton would have a very very small mass 00:01:17,520 -- 00:01:21,540 and the same is true for neutrons and 00:01:19,440 -- 00:01:24,450 electrons this is why we weigh them in 00:01:21,540 -- 00:01:28,350 relation to each other. We assign the 00:01:24,450 -- 00:01:30,450 mass of a proton as one, the neutron has 00:01:28,350 -- 00:01:32,729 a similar mass to protons and is also 00:01:30,450 -- 00:01:34,770 given the mass of one. The electron 00:01:32,729 -- 00:01:41,159 however, is much lighter and has a mass 00:01:34,770 -- 00:01:42,600 of 1 over 1840. If we think about how 00:01:41,159 -- 00:01:43,860 heavy the mass of the protons and 00:01:42,600 -- 00:01:45,750 neutrons are in relation to the 00:01:43,860 -- 00:01:47,430 electrons is clear to see that the mass 00:01:45,750 -- 00:01:50,729 of an atom is concentrated at the 00:01:47,430 -- 00:01:53,130 nucleus. Protons, neutrons and electrons 00:01:50,729 -- 00:01:55,740 also have a charge associated with them! 00:01:53,130 -- 00:01:59,610 Protons are positive. Neutrons are 00:01:55,740 -- 00:02:03,060 neutral and electrons are negative. The 00:01:59,610 -- 00:02:04,409 charge of an atom is always neutral this 00:02:03,060 -- 00:02:06,150 means there must be the same amount of 00:02:04,409 -- 00:02:08,969 protons as there are electrons. In an 00:02:06,150 -- 00:02:10,529 atom the number of neutrons can vary and 00:02:08,969 -- 00:02:13,249 they do not affect the charge of the 00:02:10,529 -- 00:02:13,249 entire atom. Want to learn more? Visit: www.thevirtualschool.com This video is distributed under a Creative Commons License: Attribution-NonCommercial-NoDerivs CC BY-NC-ND Also, make sure to follow us on Twitter: https://twitter.com/virtualschooluk and subscribe to interesting posts on Edutech and ICT4E on http://thevirtualschool.wordpress.com/

Are you ready to go to the next level of teaching with the Interactive Whiteboard? SMART tutorials for teacehrs shows you how to create engaging, interactive lessons with your Lessons activity tool - brought to you by the virtual school !

Learn the basics about shielding as a part of the atomic structure, within the overall properties of matter topic. SUBSCRIBE to the Fuse School 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. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind The Fuse School. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org

Learn the basics about Calculating molar volumes using experimental data. How do you calculate molar volumes? How do you use experimental data? Find out more in this video! This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org SUBSCRIBE to the Fuse School 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. This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind The Fuse School. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool None