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notable values from experiments, with reliable sources; predicted values from theory, with reliable sources. Each section has one entry for each element in the period table. Each entry has strict limits to allow text processing. Each element result in a string; Each string oxidation-state-number values an oxidation-state-number eg "+3," starts with
This table lists only the occurrences in compounds and complexes, not pure elements in their standard state or allotropes. Noble gas +1 Bold values are main oxidation states
In chemistry, the oxidation state, or oxidation number, is the hypothetical charge of an atom if all of its bonds to other atoms are fully ionic. It describes the degree of oxidation (loss of electrons) of an atom in a chemical compound. Conceptually, the oxidation state may be positive, negative or zero.
Methane (US: / ˈ m ɛ θ eɪ n / METH-ayn, UK: / ˈ m iː θ eɪ n / MEE-thayn) is a chemical compound with the chemical formula CH 4 (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas.
notable values from experiments, with reliable sources; predicted values from theory, with reliable sources. Each section has one entry for each element in the period table. Each entry has strict limits to allow text processing. Each element result in a string; Each string oxidation-state-number values an oxidation-state-number eg "+3," starts with
Toggle the table of contents. ... number symbol name Mohs hardness [1] Vickers hardness (MPa) [1] ... Brinell scale This page was last ...
A 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 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
Also agrees with Celsius values from Section 4: Properties of the Elements and Inorganic Compounds, Melting, Boiling, Triple, and Critical Point Temperatures of the Elements Estimated accuracy for T c and P c is indicated by the number of digits.