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29/09/2021 8:25 pm
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(a) Write down the electron arrangement in (i) a magnesium atom, and (ii) a chlorine atom.
(b) How many electrons are there in the valence shell of (i) a magnesium atom, and (ii) a chlorine atom?
(c) Show the formation of magnesium chloride from magnesium and chlorine by the transfer of electrons.
(d) State whether magnesium chloride will conduct electricity or not. Give reason for your answer.
(e) Why are covalent compounds generally poor conductors of electricity?
1 Answer
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29/09/2021 8:27 pm
(a)(i) Magnesium: 2, 8, 2 (ii) Chlorine: 2, 8, 7
(b) (i) 2 (ii) 7
(c) figure.png
(d) Magnesium chloride will conduct electricity because it is an ionic compound.
(e) Covalent compounds are generally poor conductors of electricity because they do not contain ions.