In the historical development of the Periodic Table of Elements, Mosely Moseley arranged the elements in ascending order of proton number. However, before the modern Periodic Table of Elements was used, scientists made their own discoveries. Compare how Dobereiner and Newlands arranged the elements in the Periodic Table of Elements before Moseley.
Answers
Answer:
Henry Gwyn Jeffreys Moseley (23 November 1887 – 10 August 1915)
Mendeleev's table was nine tenths of the way there, but needed one important modification before it became the modern periodic table - the use of atomic number as the organizing principle for the periods. According to Moseley, similar properties recur periodically when elements are arranged according to increasing atomic number. Atomic numbers, not weights, determine the factor of chemical properties.
Answer:
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Explanation:
Henry Gwyn Jeffreys Moseley was born in the town of Weymouth, England, UK on November 23, 1887.
His parents were both from well-educated families. His father, who was also named Henry, was a professor of anatomy and physiology. His mother, Amabel, was the daughter of a barrister who had changed careers to become a mollusk biologist.
Henry Moseley was educated in private schools. His first school was Summer Fields School – an elementary school. There he won a scholarship for Eton College, which is probably Britain’s most prestigious high school.
Some time after arriving at Eton he decided the school’s physics lessons were too easy, so he worked on the subject independently. Aged 18, he won Eton’s physics and chemistry prizes.
Already a high achiever, he was admitted in 1906 to the University of Oxford’s Trinity College, where he studied physics. There he disappointed himself. He was suffering badly from hayfever when he sat his final exams. He got a second class honors degree in physics, not the ‘first’ he had hoped for and expected.