Atomic Structure Quiz

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Questions and Answers

Which of the following indicates the number of protons in an atom's nucleus?

  • mass number
  • atomic weight
  • atomic mass
  • mass weight
  • atomic number (correct)

How are radioisotopes useful in the treatment of cancer patients?

  • When they are created they absorb radioactive energy and destroy cancer cells
  • When they decay they release radioactive energy and destroy cancer cells (correct)
  • When they decay they absorb radioactive energy and destroy the cancer cells
  • Radioisotopes are harmful so they are not useful in the treatment of cancer
  • When they are created they absorb radioactive energy and destroy cancer cells

Which of the following molecules contain polar covalent bonds?

  • H2
  • CH4
  • O2
  • H2O (correct)

The _____ bonds between the carbon atoms in unsaturated fatty acids of phospholipids helps to ______ fluidity of membranes.

<p>double; increase (D)</p> Signup and view all the answers

What is the difference between atomic mass and atomic weight?

<p>Atomic mass is the mass of an atom's nucleus, while atomic weight is the average mass of all the isotopes of an element. (C)</p> Signup and view all the answers

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