Cell Composition Elements Quiz
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Questions and Answers

Which group of elements constitute over 99% of the mass of most cells?

  • P-block elements (correct)
  • D-block elements
  • F-block elements
  • S-block elements
  • What is a characteristic feature of major elements found in living cells?

  • They are mostly P-block elements (correct)
  • They are able to form ionic bonds
  • They have larger atomic sizes/numbers
  • They are metals
  • Which elements are considered minor elements in living cells?

  • K, P, S, and C
  • O, Fe, Si, and Mg
  • Cu, Mg, Ca, and Na
  • Mn, Fe, Co, and Ni (correct)
  • What is the similarity between the composition of Earth and the composition of the human body in terms of elements?

    <p>Earth and human body share similar concentrations of some elements</p> Signup and view all the answers

    Why are major elements like Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, and Sulphur important in living cells?

    <p>They are present in organic compounds of cells</p> Signup and view all the answers

    Which statement about the representation of periodic table groups in living cells is correct?

    <p>15 out of 18 groups on the periodic table are found in cells</p> Signup and view all the answers

    What is a distinguishing feature of major elements in living cells compared to other elements?

    <p>They are neither too reactive nor inert</p> Signup and view all the answers

    According to Dalton's theory, why are atoms of the same element considered identical?

    <p>They are identical in size, mass, and chemical properties.</p> Signup and view all the answers

    What did Democritus suggest about the nature of matter?

    <p>Matter is made up of small indivisible particles called atoms.</p> Signup and view all the answers

    What makes Uranium potentially harmful to cells?

    <p>Its emission of radiations that could harm cells.</p> Signup and view all the answers

    Which element's property allows it to form bonds with itself in chains, branches, or rings?

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

    What type of compound does Platinum form that serves as an anti-cancer drug?

    <p>Inorganic compounds</p> Signup and view all the answers

    What was an incorrect aspect of Dalton's theory?

    <p>Indivisibility of atoms</p> Signup and view all the answers

    Which scientist proposed the Plum pudding or watermelon model of atomic structure?

    <p>J.J. Thompson</p> Signup and view all the answers

    What did Louis de Broglie suggest about electrons in the Wave Mechanistic Model of the atom?

    <p>Electrons have both momentum and wavelength</p> Signup and view all the answers

    Which quantum number describes the orientation of orbitals in space?

    <p>Magnetic quantum number (mi)</p> Signup and view all the answers

    In terms of electronic configuration, what does the Orbital quantum number (l) determine?

    <p>The shape of an orbital</p> Signup and view all the answers

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