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A chemical element is a substance that cannot be broken down by chemical reactions. It is identified by its atomic number and has unique properties and isotopes. Learn about the history, discovery, and classification of elements.
A chemical element is a substance that cannot be decomposed into simpler substances by ordinary chemical processes. Learn about the origin, distribution, and properties of the 118 known elements, as well as their historical development and classification.
17 paź 2020 · An element is a pure substance of atoms with the same number of protons. Learn about the 118 elements on the periodic table, their names, symbols, and atomic numbers, and how they differ from molecules and compounds.
7 cze 2024 · A chemical element is a substance that cannot be broken down by chemical means and has a unique number of protons in its atom. Learn about the 118 known elements, their properties, and how they differ from compounds and alloys.
An element is a substance that cannot be broken down into any other substance. Learn about the properties, types and examples of elements, and how they are listed in the periodic table.
5 gru 2019 · A chemical element is a substance consisting of only one type of atom with the same number of protons. Learn how elements are identified, named, synthesized and abundant in nature and the universe.
20 wrz 2024 · A periodic table is an organized array of all the chemical elements in order of increasing atomic number, showing their properties and relationships. Learn about the history, structure, and applications of the periodic table from Britannica.
