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  2. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Download as PDF; Printable version; ... also known as the periodic table of the elements, ... and the order can shift slightly with atomic number [51] and atomic charge.

  3. File:The Periodic Table of the Elements in Pictures.pdf

    en.wikipedia.org/wiki/File:The_Periodic_Table_of...

    English: This pictorial periodic table is colorful, boring, and packed with information. In addition to the element's name, symbol, and atomic number, each element box has a drawing of one of the element's main human uses or natural occurrences. The table is color-coded to show the chemical groupings.

  4. Charge number - Wikipedia

    en.wikipedia.org/wiki/Charge_number

    A chemical charge can be found by using the periodic table. An element's placement on the periodic table indicates whether its chemical charge is negative or positive. Looking at the table, one can see that the positive charges are on the left side of the table and the negative charges are on the right side of the table.

  5. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity. For more detailed information about the origins of element names, see List of chemical element name etymologies.

  6. Pnictogen - Wikipedia

    en.wikipedia.org/wiki/Pnictogen

    Download as PDF; Printable version ... are the chemical elements in group 15 of the periodic table. ... electrons in a lone pair unless there is a positive charge ...

  7. Chromium - Wikipedia

    en.wikipedia.org/wiki/Chromium

    Exceptions to the principle also occur later in the periodic table for elements such as copper, niobium and molybdenum. [ 17 ] Chromium is the first element in the 3d series where the 3d electrons start to sink into the core; they thus contribute less to metallic bonding , and hence the melting and boiling points and the enthalpy of atomisation ...

  8. Main-group element - Wikipedia

    en.wikipedia.org/wiki/Main-group_element

    The periodic table of the chemical elements.The columns represent the groups.Groups 1, 2 and 13 to 18 constitute the main group. Sometimes groups 3 and 12, as well as the lanthanides and actinides (the two rows at the bottom), are also included in the main group.

  9. Group 5 element - Wikipedia

    en.wikipedia.org/wiki/Group_5_element

    Download as PDF; Printable version; ... Group 5 is a group of elements in the periodic table. Group 5 contains vanadium (V ... Similar in size and charge to ...