Who was Ernest Rutherford?
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Who is Democritus?
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Who is John Dalton?
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{"type":"multi-choice","id":"7266","dataJson":{"type":"multi-choice","slide_id":40940,"key":7266,"prompt":"\u003cp\u003eWho is John Dalton?\u003c/p\u003e","validResponse":[7836],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"an English chemist, physicist and meteorologist, best known for introducing the atomic theory into chemistry","value":7836,"fileboyId":"17d7c7ab-c6e6-4d3f-ab6c-2040faa04813"},{"label":"the scientist who discovered the atomic nucleus with his gold foil experiment","value":7840,"fileboyId":"851f2382-a1fb-446f-ad11-e422d922989e"},{"label":"Sir Joseph John Thomson; a British physicist and Nobel laureate in physics who was credited with the discovery of the electron, the first subatomic particle to be discovered","value":7838,"fileboyId":"a8c54814-74d5-41e2-b035-81596f6e5009"},{"label":"an Ancient Greek philosopher primarily remembered today for suggesting the existence of atoms ","value":7837,"fileboyId":"f9fb9e18-71e3-41f7-b0e2-f6b3a0667750"},{"label":"the negatively charged electrode by which electrons enter an electrical device","value":7839,"fileboyId":"cb79a0e4-8f94-482f-a551-cea83aff86a3"}],"question_data":{"body":"In 1897, the English physicist, J. J. Thomson discovered that atoms contained tiny negative particles. We call these particles electrons. This was a really big discovery because it showed that atoms are not tiny indivisible spheres; they are made from smaller parts. Atoms, therefore, must have an internal structure. ","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/483f1738-eaaa-4ce1-9552-6478f60ef5cc?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}
What is a cathode?
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{"type":"multi-choice","id":"7269","dataJson":{"type":"multi-choice","slide_id":40942,"key":7269,"prompt":"\u003cp\u003eWhat is a cathode?\u003c/p\u003e","validResponse":[7839],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"the negatively charged electrode by which electrons enter an electrical device","value":7839,"fileboyId":"cb79a0e4-8f94-482f-a551-cea83aff86a3"},{"label":"an English chemist, physicist and meteorologist, best known for introducing the atomic theory into chemistry","value":7836,"fileboyId":"17d7c7ab-c6e6-4d3f-ab6c-2040faa04813"},{"label":"the scientist who discovered the atomic nucleus with his gold foil experiment","value":7840,"fileboyId":"851f2382-a1fb-446f-ad11-e422d922989e"},{"label":"an Ancient Greek philosopher primarily remembered today for suggesting the existence of atoms ","value":7837,"fileboyId":"f9fb9e18-71e3-41f7-b0e2-f6b3a0667750"},{"label":"Sir Joseph John Thomson; a British physicist and Nobel laureate in physics who was credited with the discovery of the electron, the first subatomic particle to be discovered","value":7838,"fileboyId":"a8c54814-74d5-41e2-b035-81596f6e5009"}],"question_data":{"body":"You can see that we've got a ball with embedded positive charges as well as negative electrons. About 10 years after Thomson's discovery, Ernest Rutherford carried out an experiment to test the plum-pudding model. His experiment is called the alpha scattering experiment. ","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/e33d25ad-3b64-42d1-9d21-d9574036a312?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}
Who is JJ Thomson?
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Look at the slide below to work out the answer.