Atomic Theory Learning Outcomes Quiz
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Questions and Answers

Which of the following best describes the characteristics of atoms based on Dalton’s atomic theory?

  • Atoms consist of protons, neutrons, and electrons
  • Atoms are indivisible and indestructible (correct)
  • Atoms have a dense nucleus surrounded by orbiting electrons
  • Atoms exist in a continuous, homogeneous structure

    • What did early philosophers describe about atoms?

  • Atoms are continuously divisible into smaller parts (correct)
  • Atoms have specific properties dictated by their size
  • Atoms are not fundamental building blocks of matter
  • Atoms are made of tiny, indivisible particles

    • According to the given text, what is inside matter?

  • Energy in the form of particles and waves
  • Substances composed of atoms and molecules (correct)
  • Quarks and other fundamental particles
  • Subatomic particles such as protons and neutrons

    • What happens when particles of a powder are further broken down?

    <p>Smallest particles called atoms are obtained</p> Signup and view all the answers

    Which model of the atom features a dense nucleus surrounded by orbiting electrons?

    <p>Bohr’s model</p> Signup and view all the answers

    What is the significance of the states of matter (solids, liquids, and gases) in relation to atoms?

    <p>The states of matter reflect different arrangements of atoms and molecules</p> Signup and view all the answers

    Who is credited with the idea of the atom being indivisible?

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

    According to the atomic theory, what does it say about the atoms of the same element?

    <p>They are exactly alike</p> Signup and view all the answers

    What did the discovery of the structure of an atom prove about Dalton's atomic theory?

    <p>It proved that atoms are indivisible</p> Signup and view all the answers

    Who discovered that an atom is made of smaller negatively-charged particles called electrons?

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

    Based on J.J. Thomson's Plum Pudding model, what does it suggest about the structure of an atom?

    <p>Atoms consist of electrons embedded in a positively charged sphere</p> Signup and view all the answers

    What did Rutherford conclude about the structure of the atom based on his experiment?

    <p>Atoms have a very small and dense center with all the mass and charge</p> Signup and view all the answers

    What did Rutherford's experiment lead to the discovery of?

    <p>The location of the nucleus within the atom</p> Signup and view all the answers

    According to Bohr's atomic model, will everything around us that is also made up of atoms be stable if atoms are not stable?

    <p>No</p> Signup and view all the answers

    'Chemical compounds are formed by the union of two or more atoms of different elements' is a statement from which part of the text?

    <p>'Dalton’s atomic theory'</p> Signup and view all the answers

    'It started when a scientist named J.J. Thomson discovered that an atom is made of smaller negatively-charged particles he named as electrons.' - This statement is related to which part of the text?

    <p>'Rutherford (Experiment) &amp; Thomson’s atomic model'</p> Signup and view all the answers

    What did early philosophers believe about atoms?

    <p>They believed that atoms were indivisible and indestructible.</p> Signup and view all the answers

    According to the text, what do compounds like carbon dioxide consist of?

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

    What did J.J. Thomson discover about the structure of an atom?

    <p>He discovered the existence of electrons within atoms.</p> Signup and view all the answers

    What is the significance of the states of matter (solids, liquids, and gases) in relation to atoms?

    <p>The states of matter are determined by the movement and arrangement of atoms and molecules.</p> Signup and view all the answers

    What did Rutherford's model of an atom propose about the structure of the atom?

    <p>It proposed that the nucleus was surrounded by orbiting electrons.</p> Signup and view all the answers

    Based on Dalton’s atomic theory, what characteristic is attributed to atoms?

    <p>They are indivisible and indestructible.</p> Signup and view all the answers

    What did John Dalton's atomic theory state about atoms?

    <p>Atoms of the same element are exactly alike.</p> Signup and view all the answers

    What did the discovery of the structure of an atom prove about Dalton’s atomic theory?

    <p>Atoms are indivisible.</p> Signup and view all the answers

    What was J.J. Thomson's Plum Pudding model of an atom based on?

    <p>The discovery of electrons as smaller negatively charged particles.</p> Signup and view all the answers

    According to Rutherford's experiment, what can we conclude about the structure of the atom?

    <p>An atom has a lot of empty space and a small, hard, and dense center.</p> Signup and view all the answers

    Based on Bohr's atomic model, what does the stability of atoms imply for everything around us made up of atoms?

    <p>Nothing around us made up of atoms will be stable.</p> Signup and view all the answers

    What did Rutherford conclude about the structure of the atom based on his experiment?

    <p>Electrons are embedded in a positively charged sphere.</p> Signup and view all the answers

    What aspect of Dalton’s atomic theory was proved incorrect by the discovery of the structure of an atom?

    <p>Atoms are indivisible.</p> Signup and view all the answers

    What did J.J. Thomson discover about the structure of an atom?

    <p>Atoms are made of smaller negatively-charged particles called electrons.</p> Signup and view all the answers

    "Chemical compounds are formed by the union of two or more atoms of different elements." - This statement is related to which part of the text?

    <p>&quot;Dalton’s atomic theory&quot;</p> Signup and view all the answers

    Who is credited with the idea of the atom being indivisible?

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

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