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5 October, 21:12

An ion has a charge of 3+. if this ion has 8 protons, how moany electrons does it have? A 3 B 5 C 7 D 8 E 11

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  1. 5 October, 21:13
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    B) 5

    Explanation:

    When an atom lose are gain the electron ions are formed.

    There are two types of ions. Cation and anion.

    Cation:

    It is formed when an atom lose the electrons.

    X → X⁺ + e⁻

    Anion:

    It is formed when an atom gain the electron.

    X + e⁻ → X⁻

    An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

    All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other.

    if an atom has 8 protons it means there were eight electrons present. when it lost three electron it have + 3 charge and number of electron that remain are five. 8-3 = 5
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