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This is how platinum appears

This is how platinum appears in the periodic table.A purple box has P t at the center and 78 above. Below it says platinum and
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While researching a topic, a student has taken the following notes:Platinum is a rare and expensive metal. It is used as a
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Please help with 5 questions:1) what metals are the alternatives to platinum? 2) what are the advantages/disadvantages of these
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2. asked by LISA AND MICHELLE IN LA
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One gram of platinum has 3.09 × 1021 atoms, and each platinum atom has 78 electrons.How many electrons are contained in 4.00 g
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2. asked by Rachel
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Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardness so that it can be used in
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2. asked by Pauline
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The element platinum has ccp packing with a face-centered cubic unit cell. The density of platinum is 21.5 g/cm3. Calculate the
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2. asked by tweety
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NEED HELP PLEASEMixture Problems 1.Joe created a metal containing 40% platinum by combining two other metals. One of these other
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2. asked by michele
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Consider the gold-platinum system which has a value of delta w of -4250 J/mole;(a) Calculate the enthalpy of mixing for a
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2. asked by Odesa
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Consider the gold-platinum system which has a value of delta w of -4250 J/mole;(a) Calculate the enthalpy of mixing for a
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2. asked by ssss
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Consider the gold-platinum system which has a value of delta w of -4250 J/mole;(a) Calculate the enthalpy of mixing for a
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2. asked by Ling
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