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3.1.Element

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  • He is the symbol for?
    Helium
  • How many elements are there in the periodic table?
    118 Elements
  • which is smaller an atom or a cell?
    an atom
  • Au is the symbol for?
    Gold
  • what is an element?
    A substance that can not be broken down into other substances
  • negatively charged particles arpund the nucleus are called .............
    electrons
  • Positively charged particles inside the nucleus are called ..................
    protons
  • N is the symbol for?
    Nitrogen
  • W is the symbol for?
    Tungsten
  • Fe is the symbol for?
    Iron
  • elements of the same properties are arranged in the periodic table in the same ............
    group
  • Cl is the symbol for?
    Chlorine
  • neutral particles inside the nucleus are called ......................
    neutrons
  • which one is having a smaller nucleus? (atom or cell)
    an atom
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