Study

element

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  • Elements which can be bent, hammered, and are good conductors of heat and electricity
    metals
  • Metals are good conductors of .............. and ..................
    electricity ---heat
  • -A non-metal that is used in making the positive pole of the dry cell. (………………………….)
    graphite
  • . ...................... is a liquid metal, while ………...........…… is a liquid non-meta
    mercury ---- bromine
  • Sulphur is a non-metal element. give reason
    Because it has no luster and bad conductor of electricity.
  • Cooking pots are made of…………..
    aluminium
  • . Poles of electric cells are made up of ...............
    CARBON
  • Iron is used in making………………and……………….…
    bridge - door
  • 1-Silver has metallic luster so, it is…………….., while sulphur hasn't metallic luster so, it is……………
    metal ,,,non-metal
  • 1. ...................... is an example of non-metals. a. Copper b. Carbon c. Aluminium d. Iron
    carbon
  • e. Cooking pots are made of aluminum. GR
    Because aluminum is good conductor of heat.
  • 5-Positive poles of dry cell are made of carbon. ( )
    yes
  • Non-metals are found in two states. (.........)
    No , THREE ( solid - liquid - gas)
  • Jewels are made of gold or silver. GR
    Because they are shiny and can be shaped easily
  • The group of elements that doesn't have luster is known as ..............
    NON-METAL
  • All metals are solid elements in normal temperature except bromine.
    mercury
  • . All the following elements are good conductors of electricity except ………… a. Carbon b. Iron c. Sulphur d. Copper
    sulphur
  • Jewellery is made of…………
    gold
  • Carbon (graphite) is used in making positive poles of dry cells. GR
    Because it is good conductor of electricity.
  • -Electric wires are made up of……………. a-sulphur b-carbon c-copper
    copper
  • Elements that have low melting point. (…………………………..)
    non metal
  • Give reason:- 1-Sulphur is a non metal element
    Because it has low melting point ,,bad conductor of heat ands electricicty