Magnesium chloride contains magnesium ions (Mg²⁺) and chloride ions (Cl⁻).
Describe, in terms of electrons, what happens when a magnesium ion reacts with chlorine atoms to produce magnesium chloride. 4 marks
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Answer + Explanation:
To obtain full outer shells magnesium must lose two electrons and chlorine must gain one electron. So when we react magnesium in chlorine, one magnesium atom reacts with two chlorine atoms to form magnesium chloride, MgCl2.
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Answer: 2 electrons have transferred from the Magnesium to the Chloride atoms and the Chloride atoms have gained an electron. This makes a Magnesium^2+ ion and a Chlorine^- ion. Electrostatic forces attract the two ions, forming a very strong bond.
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