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21 August, 15:42

An atom has 9 electrons and 9 protons at the start. If it loses 2 electrons, the net charge on the atom will be? If the atom instead gains 4 electrons the net charge will be?

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  1. 21 August, 18:03
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    Loses 2 = + 2 charge

    gains 4 = - 2 charge
  2. 21 August, 18:22
    0
    Answer : If it loses 2 electrons, the net charge on the atom will be (+2) and If it gains 4 electrons, the net charge on the atom will be (-4).

    Explanation:

    We are given:

    Number of electron in an atom = 9

    Number of protons in an atom = 9

    Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

    Atomic number = number of protons = number of electrons

    An ion is formed when an atom looses or gains electron.

    When an atom looses electrons, it will form a positive ion known as cation.

    When an atom gains electrons, it will form a negative ion known as anion.

    According to the question,

    When the atom loses 2 electrons then the net charge on the atom will be (+2) because it will form a positive ion by losing electrons.

    When the atom gains 4 electrons then the net charge on the atom will be (-4) because it will form a negative ion by gains electrons.
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