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The atomic number of an element is 8 . How many electrons will it gain to form a compound with sodium?

Options

  1. Aone
  2. BTwo
  3. CThree
  4. DFour

Correct answer

B. Two

Step-by-step solution

It will gain two electrons to form a compound with sodium. When the element with atomic number 8 that is oxygen reacts with sodium, each sodium atom loses an electron and sodium is oxidized, and each oxygen gains two electrons. 4 Na + O ₂ 2 Na ₂ O

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