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Chemical element - Wikipedia
https://en.wikipedia.org/wiki/Chemical_element
Webt. e. A chemical element is a chemical substance that cannot be broken down into other substances by chemical reactions. The basic particle that constitutes a chemical element is the atom. Chemical elements are identified by the number of protons in the nuclei of their atoms, [1] known as the element's atomic number. [2] .
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Periodic Table of Elements - PubChem
https://pubchem.ncbi.nlm.nih.gov/periodic-table/
WebPeriodic Table of Elements - PubChem. TABLE. LIST W/PROPERTIES. GAME. Display Property/Trend. 17. Cl. Chlorine. halogen. Plot Atomic Mass. 1. Hydrogen. nonmetal. 2. Helium. noble gas. 3. Lithium. alkali metal. 4. Beryllium. alkaline earth metal. 5. Boron. metalloid. 6. Carbon. nonmetal. 7. Nitrogen. nonmetal. 8. Oxygen. nonmetal. 9. Fluorine.
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List of chemical elements - Wikipedia
https://en.wikipedia.org/wiki/List_of_chemical_elements
WebA chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [1]
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Periodic table - Wikipedia
https://en.wikipedia.org/wiki/Periodic_table
Webt. e. The periodic table, also known as the periodic table of the elements, arranges the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.
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Periodic table | Definition, Elements, Groups, Charges, Trends,
https://www.britannica.com/science/periodic-table
WebFeb 26, 2024 · In full: periodic table of the elements. Key People: Dmitri Mendeleev. Lothar Meyer. Paul-Émile Lecoq de Boisbaudran. atom. period. See all related content →. Top Questions. What is the periodic table? What do periodic table groups have in common?
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Periodic Table of Elements - American Chemical Society
https://www.acs.org/education/whatischemistry/periodictable.html
WebThe periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number. Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol.
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Periodic Table - Ptable
https://ptable.com/?lang=en
WebWikipedia. State at. Weight. Energy levels. Electronegativity. Melting point. Boiling point. Electron affinity. Ionization, Radius, Hardness, Modulus, Density, Conductivity, Heat, Abundance, Discovered. Oxidation states. Configuration. Expanded. Energy levels. HOAO. Count. Write-up. Mass excess. Binding energy. Abundance. Half-life. Decay mode.
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Chemical element | Definition, Origins, Distribution, & Facts
https://www.britannica.com/science/chemical-element
WebFeb 16, 2024 · chemical element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes.Elements are the fundamental materials of which all matter is composed. This article considers the origin of the elements and their abundances throughout the universe.The geochemical distribution of these elementary …
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Periodic table - Elements, Groups, Blocks | Britannica
https://www.britannica.com/science/periodic-table/The-periodic-table
WebScience Quiz. A number of the elements of each long period are called the transition metals. These are usually taken to be scandium, 21, to zinc, 30 (the iron-group transition metals); yttrium, 39, to cadmium, 48 (the palladium-group transition metals); and hafnium, 72, to mercury, 80 (the platinum-group transition metals).
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Element Definition & Meaning | Britannica Dictionary
https://www.britannica.com/dictionary/element
WebELEMENT meaning: 1 : one of the basic substances that are made of atoms of only one kind and that cannot be separated by ordinary chemical means into simpler substances; 2 : a particular part of something (such as a situation or activity)
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