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What is the number of electrons shared between the two atoms in an O2 molecule?

  • Mayya Alocci
  • Jul 31, 2023
  • 1 min read

June 2023 NY Regents Chemistry Exam


10 What is the number of electrons shared between the two atoms in an O2 molecule? (1) 6

(2) 2 (3) 3

(4) 4


Solution: Oxygen can be found on the Periodic Table. Its electron configuration is 2-6 which means it has 6 valence electrons. Each element (other than H and He) wants 8 valence elections. It needs 2 more electrons to have 8. Therefore, when an oxygen atom will bond to another oxygen atom, it will form a double bond. Each bond has 2 electrons. Double bond has 2*2= 4 electrons

Answer: 4


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