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9 August, 13:23

Match the following.

1. a positively charged ion; an atom which has lost an electron cation

2. a negatively charged ion; an atom which has gained an electron pH

3. the compound formed by the ionic bonding of a cation and anion salt

4. a measure of the hydrogen ion concentration in a solution anion

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Answers (2)
  1. 9 August, 13:25
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    PH is the measure of hydrogen ions

    A positive ion is a cation

    A negative ion is an anion
  2. 9 August, 13:29
    0
    1. a positively charged ion; an atom which has lost an electron - cation

    2. a negatively charged ion; an atom which has gained an electron - anion

    3. the compound formed by the ionic bonding of a cation and anion - salt

    4. a measure of the hydrogen ion concentration in a solution - pH

    Explanation:

    A normal atom has no charge or neutral charge because it has equal number of protons, positive particles and electrons, negative particles. But when a neutral atom loses an electron, it becomes ion with one positive charge. Positive charged atom is called cation. Similarly, when a neutral an atom on gaining an electron, becomes an ion with one negative charge. Negative charged atom is called anion. Cation and anion combined by an ionic bond to form a salt, example sodium chloride. pH is a measure of the hydrogen ion concentration in a solution.
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