Name the scientist who first of all showed that atomic number of an element is more fundamental property than its atomic mass
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henrey moseley an American scientist
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HEY MATE,
Let's get a bit into the history. Dobereiner's 3 triads grouped 3 elements together, the middle one being the average. Then came the telluric helix(proposed by Chancourtis) and Newland's law of octaves. Lothar Meyer and Mendeleev came up with identical element cclassifications. Special credits to Mendeleev who actually predicted properties of elements not discovered yet. Example he called Gallium(which was not discovered then) as eka Aluminium and germanium eka silicon. He knew something was off when he placed iodine after tellurium even though it was lighter because it had similar properties with the halogens. His primary focus was periodicity of properties.
It was Henry Mosely who realised that the atomic numbers caused periodicity. His experiment included plotting square root of frequency against atomic number which gave a straight line
HOPE IT HELPZ...
PLS MARK AS BRAINLIEST
Let's get a bit into the history. Dobereiner's 3 triads grouped 3 elements together, the middle one being the average. Then came the telluric helix(proposed by Chancourtis) and Newland's law of octaves. Lothar Meyer and Mendeleev came up with identical element cclassifications. Special credits to Mendeleev who actually predicted properties of elements not discovered yet. Example he called Gallium(which was not discovered then) as eka Aluminium and germanium eka silicon. He knew something was off when he placed iodine after tellurium even though it was lighter because it had similar properties with the halogens. His primary focus was periodicity of properties.
It was Henry Mosely who realised that the atomic numbers caused periodicity. His experiment included plotting square root of frequency against atomic number which gave a straight line
HOPE IT HELPZ...
PLS MARK AS BRAINLIEST
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