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Chlorine, atomic number 17 kills bacteria. This is why it is placed in drinking water and swimming pools.
The element Europeum, symbol Eu, atomic number 63, is named after Europe. The element Americium, symbol Am, atomic number 95, is named after America.
In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore rearranged the table by nuclear charge / atomic number rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
1914. In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
No one proposed it. It IS about the atomic number.
it didn't
the atomic bomb was not discovered, it was invented then built.
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Robert Oppenheimer's big discovery was the atomic bomb
Chlorine, atomic number 17 kills bacteria. This is why it is placed in drinking water and swimming pools.
1939
No. Nor did anyone else. Atomic bombs are an invention not a discovery.
In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
Albert Einstein
The element Europeum, symbol Eu, atomic number 63, is named after Europe. The element Americium, symbol Am, atomic number 95, is named after America.
No, America only dropped the atomic bombs on Japan.
One was the discovery of Plutonium.