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• 07:30, 22 May 2025 Thakshashila talk contribs created page Henry Moseley (Created page with "= Henry Moseley – The Scientist Who Defined Atomic Number = == Introduction == '''Henry Gwyn Jeffreys Moseley''' (1887–1915) was a British physicist whose groundbreaking work on the atomic structure of elements redefined the **Periodic Table**. He introduced the concept of the **atomic number**, which became the modern basis for arranging elements. His work corrected flaws in Mendeleev’s table and laid the foundation for modern atomic physics. == Early Life and...")