Editing Henry Moseley (section)

== 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.