Elements, Isotopes, and Ions in Periodic Table
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Questions and Answers

Which of the following represents the number of protons in an atom?

  • Number of neutrons
  • Mass number
  • Number of electrons
  • Atomic number (correct)
  • What is the notation used to represent the number of protons and neutrons in an atom?

  • Ion notation
  • Isotopic notation
  • Atomic mass
  • Mass number (correct)
  • Which property of an element does the periodic table help to identify?

  • Molecular structure
  • Molar mass
  • Melting point
  • Electronegativity (correct)
  • What type of bonding is responsible for the properties of diamond and graphite?

    <p>Covalent bonding</p> Signup and view all the answers

    Which type of molecule exhibits a linear shape?

    <p>Carbon Dioxide</p> Signup and view all the answers

    Which type of substance does not conduct electricity?

    <p>Molecular substances</p> Signup and view all the answers

    What is the main factor responsible for the physical properties of metals, such as heat conductivity and electrical conductivity?

    <p>Metallic bonding</p> Signup and view all the answers

    What type of bonding is found in ionic compounds?

    <p>Ionic bonding</p> Signup and view all the answers

    What determines the solubility of polar solutes in polar solvents and non-polar solutes in non-polar solvents?

    <p>Polarity</p> Signup and view all the answers

    Which experimental technique is used to determine the composition and purity of different substances?

    <p>Chromatography</p> Signup and view all the answers

    Which ion is commonly found in ionic compounds and has a negative charge?

    <p>Hydroxide (OH‾)</p> Signup and view all the answers

    What property does a substance with a linear molecular shape typically exhibit?

    <p>Non-conduction of electricity</p> Signup and view all the answers

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