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  2. Boron group - Wikipedia

    en.wikipedia.org/wiki/Boron_group

    The elements in group 13 are also capable of forming stable compounds with the halogens, usually with the formula MX 3 (where M is a boron-group element and X is a halogen.) [14] Fluorine, the first halogen, is able to form stable compounds with every element that has been tested (except neon and helium), [15] and the

  3. Group 13 hydride - Wikipedia

    en.wikipedia.org/wiki/Group_13_hydride

    Group 13 hydrides are chemical compounds containing group 13-hydrogen bonds (elements of group 13: boron, aluminium, gallium, indium, thallium, and nihonium). [ 1 ] Trihydrides

  4. Group (periodic table) - Wikipedia

    en.wikipedia.org/wiki/Group_(periodic_table)

    In the periodic table of the elements, each column is a group. In chemistry, a group (also known as a family) [1] is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the 14 f-block columns, between groups 2 and 3, are not numbered.

  5. Names for sets of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Names_for_sets_of_chemical...

    Elements in groups 1–2 or 13–18, excluding hydrogen * Transition elements are sometimes referred to as transition metals † Although the heavier elements of groups 15 (Mc), 16 (Lv), 17 (Ts) and 18 (Og) have been notionally assigned to the indicated groups their chemical properties have not yet been experimentally confirmed.

  6. 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.

  7. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    The Roman numerals used correspond to the last digit of today's naming convention (e.g. the group 4 elements were group IVB, and the group 14 elements were group IVA). In Europe, the lettering was similar, except that "A" was used for groups 1 through 7, and "B" was used for groups 11 through 17. In addition, groups 8, 9 and 10 used to be ...

  8. Aluminium - Wikipedia

    en.wikipedia.org/wiki/Aluminium

    Aluminium combines characteristics of pre- and post-transition metals. Since it has few available electrons for metallic bonding, like its heavier group 13 congeners, it has the characteristic physical properties of a post-transition metal, with longer-than-expected interatomic distances. [25]

  9. Dividing line between metals and nonmetals - Wikipedia

    en.wikipedia.org/wiki/Dividing_line_between...

    [2] [n 1] While it has also been called the Zintl border [8] or the Zintl line [9] [10] these terms instead refer to a vertical line sometimes drawn between groups 13 and 14. This particular line was named by Laves in 1941. [11] It differentiates group 13 elements from those in and to the right of group 14.