Calculate the relative formula mass (Mr) of barium chloride (Relative atomic masses: Ba=137, Cl=35.5)
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Card 7
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Draw electronic diagrams for calcium.
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Card 8
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How many outer electrons does bromine and strontium have?
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Card 9
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Why is it important to know the number of outer electrons?
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Card 10
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Noble gases are very unreactive elements. Explain why in terms of electronic structure.
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Card 11
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What are the melting and boiling points of potassium fluoride and in what form does it conduct electricity?
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Card 12
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Describe the electronic structure of a potassium ion and a fluoride ion.
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Card 13
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Explain how two ions form the compound potassium fluoride.
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Card 14
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Explain why solid sodium chloride does not conduct electricity but when dissolved in water it does.
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Card 15
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A student took some molten sodium chloride and tested it for electrical conductivity. It was a conductor. Explain why molten sodium chloride can conduct electricity.
