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18 January, 02:42

If a particle has Z = 25 and 23 electrons, what is its charge?

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  1. 18 January, 02:47
    0
    Answer: - The charge is + 2.

    Explanations: - Z stands for atomic number. The Z is given as 25 means the atomic number of the element is 25. It has 23 electrons. For a neutral atom the number of electrons is same as the atomic number. Since the number of electrons is less than atomic number, the atom must have lost the electrons.

    Number of electrons lost = 25 - 23 = 2

    If the element lost electrons then it has positive charge. As, the electrons are lost, the charge is + 2.
  2. 18 January, 03:03
    0
    Z is atomic number. Atomic number is the number of protons, atomic number is characteristic for the element.

    Protons are positively charged and electrons are negatively charged.

    When the number of protons and electrons are equal then the atom is neutral, if there are more electrons than protons then atom is negatively charged and if the atom has more protons than electrons then atom is positively charged.

    In this particle there are 25 protons and 23 electrons therefore there are 2 more protons than electrons

    The charge of the particle is + 2
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