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29 January, 22:16

Which of the following is in the lanthanide family?

A) Uranium

B) Promethium

C) Silver

D) Gold

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Answers (2)
  1. 29 January, 23:55
    0
    It is Promethium

    Explanation:

    Because they are chemical elements with atomic numbers 57 through 71
  2. 30 January, 01:36
    0
    The answer is B) Promethium

    Explanation:

    The Promethium is a chemical element of the periodic table whose symbol is Pm and its atomic number is 61 and is part of the group of lanthanide elements.

    Lanthanides are a group of elements that are part of period 6 of the periodic table of the elements whose name comes from the chemical element lanthanum, which is included within this group, giving a total of 15 elements, from the element of atomic number 57 (lanthanum) to 71 (lutetium)
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