NLC

Cards (17)

  • Why is compound a pure Substance?
    Made of elements
  • Difference between compound and elements?
    Elements are made up of one atom and compound are made up of 2 or more atom
  • Composition- the nature of somthing's ingredients or the way in which something is made up
  • Chemical- a district substance that may be a pure substance or a mixture of substance artificially prepared
  • Compound- a pure substance made up of two or more different atoms inin definitely composition
  • 118- the number of elements
  • How elements is organized in periodic table?
    Increasing atomic number
  • What do you call the vertical column in periodic table?
    Groups
  • What do you call the horizontal rows?
    Period
  • What happen to the element as you move horizontally?
    Add of one proton
  • Elements with similar properties are arrange oneone above the vertical
  • What dodo you callcall a history of chemistry where people try to make elixer
    Alchemy
  • The iron Age is named after
    Iron
  • Bronze is a metal alloy that is a mixture of the metals copper and tin. It was used to make weapon, statues, coin, and bells
  • Steel is made up from iron and carbon
  • Carbon steel- it is most Important alloy today. Cause it is much harder than previous
  • Stainless steel- aa type of carbon steel withwith small amountamount of chromium, nickel