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Składa się z małego dodatnio naładowanego jądra o dużej gęstości i otaczającej go chmury elektronowej o ujemnym ładunku elektrycznym [c]. Słowo atom pochodzi z greckiego ἄτομος – átomos (od α-, „nie-” + τέμνω – temno, „ciąć” [1]), oznaczającego coś, czego nie da się przeciąć ani podzielić [2].
Learn what an atom is, how it is composed of protons, neutrons and electrons, and how it differs from other particles. Explore the history of atomic theory, the structure and properties of atoms, and their role in chemistry and physics.
8 paź 2024 · Learn about the basic building block of matter and chemistry, its subatomic particles, and its chemical properties. Explore the history of atomic theory and the periodic table of elements.
24 sty 2024 · Learn about the tiny building blocks of matter, their parts, and how they combine to form everything around us. Find out how atoms are made of protons, neutrons, and electrons, and how they differ in size and properties.
An interactive periodic table showing names, electrons, and oxidation states of atoms. Find properties, isotopes, decay modes, and more for each element.
19 lis 2023 · Learn what an atom is, how it is composed of protons, neutrons, and electrons, and how it forms elements, isotopes, and ions. Explore the history of atomic theory, the misconceptions and facts about atoms, and the difference between matter and antimatter atoms.
Learn the basics of atom structure, composition and properties from the U.S. Nuclear Regulatory Commission. Find out how protons, neutrons and electrons determine the elements, isotopes and radioactivity of atoms.
