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21 February, 09:42

Which three groups of the periodic table contain the most elements classified as transition elements

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  1. 21 February, 09:54
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    The correct answer is C. Groups 2, 3, 4.

    The main groups of elements which are in the periodic table include, group1, group2, and group 13 up to group 18.

    These groups are the representative elements. Group 1 contains all the alkali metals which include sodium, lithium, potassium, and francium.

    They react with halogens to form an ionic salt. For example, sodium chloride.

    Group 2 contains Alkaline earth metals which include barium, strontium, radium, calcium, and magnesium. They are less active than alkali metals. They are named after their oxides.

    Group 13 is the Boron group. It includes indium, thallium, gallium, and aluminium. Aluminum it is known to be the third most abundant element on earth crust.
  2. 21 February, 13:22
    0
    The question contain these choices:

    A) groups 1, 16 and 18

    B) groups 5, 7 and 9

    C) groups 2, 3 and 4

    D) groups 15, 16 and 17

    The correct answer is C) groups 2, 3 and 4

    In the periodic table groups of transition elements are from group 3 to group 12

    so here we have in C) group 3 which contain lanthanides and actinides so this choice contain the most elements classified as transition elements
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