Atomic Structure Quiz
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Questions and Answers

What is the primary factor that distinguishes one chemical element from another?

  • Number of protons in their atoms (correct)
  • Number of electrons in their atoms
  • Number of neutrons in their atoms
  • Size of their atoms

What is the term used for atoms with the same number of protons but a different number of neutrons?

  • Isobars
  • Isomers
  • Isotopes (correct)
  • Isotones

What is the primary reason humans cannot see atoms with conventional microscopes?

  • Inadequate magnification
  • Lack of proper illumination
  • Size of atoms compared to wavelength of visible light (correct)
  • Inability to focus on such small objects

What constitutes more than 99.94% of an atom's mass?

<p>Nucleus (D)</p> Signup and view all the answers

If an atom has more electrons than protons, what kind of ion is it called?

<p>Negative ion (anion) (C)</p> Signup and view all the answers

What is the primary component of an atom's nucleus?

<p>Protons and neutrons (C)</p> Signup and view all the answers

What causes electrons to be electromagnetically-bound to the nucleus of an atom?

<p>Opposing charge with the nucleus (A)</p> Signup and view all the answers

What kind of ion is formed when an atom has more electrons than protons?

<p>Negative ion (anion) (B)</p> Signup and view all the answers

Why is it not possible to accurately predict the behavior of atoms using classical physics?

<p>Due to quantum effects (D)</p> Signup and view all the answers

What distinguishes one chemical element from another?

<p>Number of protons in their atoms (D)</p> Signup and view all the answers

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