| rutherford |
found that the collision of alpha particles with nitrogen atoms resulted in the disintegration of the nitrogen and the production of hydrogen nuclei (protons) and an isotope of oxygen. He was the first person to achieve artificial transmutation of an element. 5
출처: www.bartleby.com/67/1729.html
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| Rutherford a. |
nuclear a.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Rutherford's t. |
frequency t.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Rutherford's theory |
frequency theory
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| ruthenium |
A member of the platinum group, ruthenium is an extremely hard metal used as a premier alloy for palladium and platinum to make them more wear resistant. Objects plated with ruthenium have exceptional resistance to scratching and abrasion. Ruthenium plated surfaces offer a very unique finish and can be modified from a light grey to dark brownish-black grey color.
출처: www.alacarteclasps.com/Glossary.aspx
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