Atomic Structure: Discovery of the Neutron @tdewitt451

Tyler DeWitt | Atomic Structure: Discovery of the Neutron @tdewitt451 | Uploaded October 2012 | Updated October 2024, 1 day ago.
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We know that there are protons and neutrons in the nucleus of an atom. How was the neutron discovered? James Chadwick found that atoms of Boron, Beryllium and Lithium released neutrons when they are bombarded with alpha particles. These neutrons cause protons to be ejected from paraffin wax. Neutrons are not gamma rays, because they have to have a lot of mass in order to knock protons out of paraffin with such speed.

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$Unit Conversions with Area and Volume To see all my Chemistry videos, check out http://socratic.org/chemistry How to use conversion factors to work with units like square feet, square inches, cubic feet, and cubic inches. You have to write the relationship and then square or cube both sides of the equation, and then you can use that to build a conversion factor fraction to cancel units and do dimensional analysis or factor label method.$

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