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Apply: Lewis diagrams of atoms

You might need: Periodic table


The Lewis diagram for a neutral atom of element X is shown below.
Complete the statement.
Enter your answer as a whole number.
Element X has
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
valence electron(s).
Which of the following elements could be element X?
Choose 1 answer: