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

General Science (NDA) Chemistry

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

One

Two

Three

Four

Explanation:

Option2
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 + 0₂ 2 Na₂0