Physics and chemmistry 3C1 by

ATOM

nagorebahamonde — 2024-10-04 07:33:41 UTC

nagorebahamonde — 2024-11-21 09:41:45 UTC

nagorebahamonde — 2024-11-21 09:43:20 UTC

HENRY MOSELEY

nagorebahamonde — 2024-11-22 07:22:23 UTC

Henry Moseley (1887–1915) was a British physicist known for his work on atomic structure. He discovered that the atomic number (not atomic weight) is the key to organizing elements in the periodic table, based on the frequencies of X-ray emissions. His law, Moseley's Law, helped resolve inconsistencies in the periodic table and predicted the existence of elements like technetium. Moseley died young in World War I, but his contributions remain vital to the understanding of atomic theory.

DMITRI MENDELEEV

nagorebahamonde — 2024-11-22 07:25:06 UTC

Dmitri Mendeleev (1834–1907) was a Russian chemist, best known for creating the periodic table of elements. In 1869, he organized the elements by their properties and predicted the existence of undiscovered elements. His work was crucial to the development of modern chemistry and the current organization of the elements in the periodic table.

PERIODIC TABLE

nagorebahamonde — 2024-11-22 07:26:36 UTC

PERIODIC TABLE

nagorebahamonde — 2025-01-09 11:55:31 UTC