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Module 2. Physics
Oxygen, atomic number 8 is
•  trivalent.
•  univalent.
•  bivalent.

nkris10 asking:
•  can someone explain


Community comments: 1
Klemis3000
Posts: 6
08.11.2018 / 21:34
Oxygen has 2 electrons on first shell and 6 on second (outer shell). Knowing that 8 is a maximum number of electrons in second shell makes Oxygen bivalent. Bi meaning 2 for 2 free spaces in outer shell
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