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Refer to the table, answer questions 7-9. Table: Some properties of elements at 25C and 1 atm pressure Hardness or Appearance Electricity conductivity Element Melting Boling point (C) toughness point (C) Shiny, silvery liquid Mercury Yes -39 357 Colourless gas Hydrogen No -259 -253 Iron Shiny, silvery solid Hard and tough Yes 1,538 2,861 Sulphur Yellow solid Hard and brittle No 120 445 Sodium Shiny, silvery solid Soft and tough Yes 98 883 Silicon Shiny, silvery solid Hard and brittle Slightly 1,414 3,265 Boron Black Solid Hard and brittle No 2,030 3,900 Chlorine Yellowish green gas No - 102 -35 Bromine Orange red liquid No -7 59 Oxygen Colourless gas No -219 - 183 Magnesium Shiny, silvery solid Hard and tough Yes 650 1,090 lodine Shiny, dark purple Hard and brittle No 113.5 184.5 Solid 7. Which elements are metals and which are non-metals? 8. Is silicon a metal or non-metal or metallloid? Justify your reason. 9. What are the uses of metals, non-metals and metalloids in daily life? Give examples. 0. Blement A is a solid with shiny ธurfaces, good electricity and heat conductivity, the density Or 7.8 g/cm, boiling point of 1,090 C and melting point of 650 C. Is Element A a metal or non-metal? Justify your reasons. 67

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ke about markets? Boston Market Wins More Customerร Boston News 7 Haymarket vendors have a reason to celebrate. Their market is becoming more popular than ever. says (This is the busiest market in Boston! Vicky Green at her fruit stand. All the locals come close to downtown. It also has here because its very Convenient hours and the best prices in Boston! For hundreds of years, Haymarket has been the best place to buy fruits and vegetables in Boston. Vendors started gathering in this area of Bostons North End in the mid-1700s. The market grew larger in the nineteenth and twentieth centuries, but almost wholesalers weren't able to sell to grocery stores. "Just remember that the fruits and vegetables are usually very ripe; says Stacy Mills, 30, 'so you need to eat them SOon. But you can get a lot of produce for a great price. And the vendors are much friendlier than salespeople in a supermarket." 4 disappeared when highway construction disrupted the street in the 1990s. The street is now filled with produce stands selling fruits and vegetables from all over the world. And customers love it. Prices here are often cheaper 3 than in the grocery store, so you can find some great In every grocery store you always find the same products, says Eileen Fisher, 21. Iprefer Haymarket because I can get some really exotic food here, for example, from Asia or North Africa. And there are many market stands to choose from The future has never looked better for Haymarket. It has truly become a Boston tradition! bargains, explainsร Nick Baines, 16. This is because vendors sell the produce that nearby

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