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  2. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]

  3. Chemical symbol - Wikipedia

    en.wikipedia.org/wiki/Chemical_symbol

    The periodic table, elements being denoted by their symbols. ... Many functional groups also have their own chemical symbol, e.g. Ph for the phenyl group, ...

  4. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    The definitive visualisation of all 118 elements is the periodic table of the elements, ... · Symbol K, from Neo-Latin kalium, from German 1 4 s-block 39.098: 0.89:

  5. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.

  6. Vanadium - Wikipedia

    en.wikipedia.org/wiki/Vanadium

    The interrelationships in this family are described by the predominance diagram, which shows at least 11 species, depending on pH and concentration. [29] The tetrahedral orthovanadate ion, VO 3− 4, is the principal species present at pH 12–14. Similar in size and charge to phosphorus(V), vanadium(V) also parallels its chemistry and ...

  7. Sulfur - Wikipedia

    en.wikipedia.org/wiki/Sulfur

    This is an accepted version of this page This is the latest accepted revision, reviewed on 2 January 2025. This article is about the chemical element. For other uses, see Sulfur (disambiguation). Chemical element with atomic number 16 (S) Sulfur, 16 S Sulfur Alternative name Sulphur (British spelling) Allotropes see Allotropes of sulfur Appearance Lemon yellow sintered microcrystals Standard ...

  8. Phosphorus - Wikipedia

    en.wikipedia.org/wiki/Phosphorus

    Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus , but because it is highly reactive , phosphorus is never found as a free element on Earth.

  9. Zinc - Wikipedia

    en.wikipedia.org/wiki/Zinc

    Zinc is a chemical element with the symbol Zn and ... 3d 10 4s 2 and is a member of the group 12 of the periodic table. ... at the normal blood pH of 7 or would ...

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