Electrons are found...
  • in the nucleus of an atom
  • in shells orbiting the nucleus
  • dotted throughout the atom
  • in lines radiating out from the nucleus
What is the maximum number of electrons in the first shell?
  • 2
  • 3
  • 8
  • 1
What is the maximum number of electrons in the second shell?
  • 2
  • 3
  • 8
  • 1
What is the electron configuration of the element lithium?
  • 2,2
  • 2,8
  • 2,1
  • 2,8,1
Which element has the electron configuration 2,4?
  • Sodium
  • Potassium
  • Neon
  • Carbon
Which element has the electron configuration 2,8,7?
  • Fluorine
  • Argon
  • Chlorine
  • Magnesium
Which of the following is NOT an electron configuration for an element in group 8 (also called group 0, Group 18 or the noble gasses)?
  • 2
  • 2,8
  • 2,8,2
  • 2,8,8
What is the electronic configuration for an Na ion?
  • 2,8,7
  • 2,8,8
  • 2,7
  • 2,8
What is the electronic configuration for an Al ion?
  • 2,8,8
  • 2,8,7
  • 2,8
  • 2,7
What is the electronic configuration for an O ion?
  • 2,7
  • 2,8
  • 2
  • 2,8,2
0 h : 0 m : 1 s

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