{"id":87083,"date":"2025-06-01T04:27:43","date_gmt":"2025-06-01T04:27:43","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87083"},"modified":"2025-06-01T04:27:43","modified_gmt":"2025-06-01T04:27:43","slug":"who-among-the-following-scientists-developed-the-modern-periodic-table","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/who-among-the-following-scientists-developed-the-modern-periodic-table\/","title":{"rendered":"Who among the following scientists developed the Modern Periodic Table"},"content":{"rendered":"

Who among the following scientists developed the Modern Periodic Table ?<\/p>\n

[amp_mcq option1=”Henry Moseley” option2=”Dmitri Ivanovich Mendeleev” option3=”John Alexander Newlands” option4=”Johann D\u00f6bereiner” correct=”option1″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC Geoscientist – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nHenry Moseley developed the Modern Periodic Table based on atomic number.
\n<\/section>\n
\nMoseley’s work in 1913 using X-ray spectroscopy showed that the atomic number (the number of protons in an atom’s nucleus) is a more fundamental property than atomic mass for organizing the elements. Arranging elements by increasing atomic number resolves anomalies present in Mendeleev’s table.
\n<\/section>\n
\nDmitri Mendeleev is credited with creating the first widely accepted periodic table in 1869, which was arranged by increasing atomic mass and predicted the existence and properties of undiscovered elements. John Alexander Newlands proposed the Law of Octaves in 1865, arranging elements by atomic weight. Johann D\u00f6bereiner’s Law of Triads (1829) grouped elements with similar properties. While these scientists made important contributions, Moseley’s work led to the arrangement used in the modern periodic table.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Who among the following scientists developed the Modern Periodic Table ? [amp_mcq option1=”Henry Moseley” option2=”Dmitri Ivanovich Mendeleev” option3=”John Alexander Newlands” option4=”Johann D\u00f6bereiner” correct=”option1″] This question was previously asked in UPSC Geoscientist – 2024 Download PDFAttempt Online Henry Moseley developed the Modern Periodic Table based on atomic number. Moseley’s work in 1913 using X-ray spectroscopy showed … <\/p>\n

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