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13 November, 05:05

Based on your understanding of the periodic table, which element has the greatest number of electrons

A. Uranium

B. Sodium

C. Selenium

D. Polonium

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Answers (2)
  1. 13 November, 06:32
    0
    Answer : The uranium element has the greatest number of electrons.

    Explanation:

    Atomic number : It is defined as the number of protons or number of electrons.

    Atomic number = Number of protons = Number of electrons

    Mass number : It is defined as the sum of number of protons and number of neutrons.

    Number of neutrons = Mass number - Number of protons

    The given element is, Uranium

    Atomic number of Uranium = 92

    Atomic number = Number of protons = Number of electrons

    So, Atomic number = Number of electrons = 92

    The given element is, Sodium

    Atomic number of Sodium = 11

    Atomic number = Number of protons = Number of electrons

    So, Atomic number = Number of electrons = 11

    The given element is, Selenium

    Atomic number of Selenium = 34

    Atomic number = Number of protons = Number of electrons

    So, Atomic number = Number of electrons = 34

    The given element is, Polonium

    Atomic number of Polonium = 84

    Atomic number = Number of protons = Number of electrons

    So, Atomic number = Number of electrons = 84

    Hence, from this we conclude that uranium element has the greatest number of electrons.
  2. 13 November, 08:08
    0
    A. Uranium

    Explanation:

    Uranium - 92e-

    Sodium - 11e-

    Selenium - 34e-

    Polonium - 84e-
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