C4 16. Group 1 elements lose 1 electron from the outer shell to form a 1+ ion. A group 2 element has to lose 2 electrons from its outer shell to form a 2+ ion. A group 6 element..
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Card 17
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C4 17. Atoms gain and lose electrons to form a full outer shell. When atoms become ions..
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Card 18
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C4 18. Compounds of metals with non-metals form salts. Salts are crystalline and shaped like cubes. Salts..
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Card 19
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C4 19. Salts do not conduct electricity as a solid but do as a liquid or in aqueous solution. This is because..
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Card 20
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C4 20. Electrolysis is the process when an electric current..
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Card 21
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C4 21. During electrolysis the negative electrode attracts the positive metal ions. The positive electrode attracts..
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Card 22
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C4 22. The charges in the ionic compound should be neutral (the charges of the ions add up to 0) Eg; magnesium oxide consists of..
