If oxygen atom gains 2 electrons, write the symbol, number of protons and number of electrons of the newly formed ion.

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Solution

Oxygen atom has 8 electrons, on gaining 2 more electrons it will be increased to 10.
Number of protons do not change while gaining or losing electrons hence it will be 8.
Symbol of the ion: O^2-

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If oxygen atom gains 2 electrons, write the symbol, number of protons and number of electrons of the newly formed ion.

Oxygen atom has 8 electrons, on gaining 2 more electrons it will be increased to 10.Number of protons do not change while gaining or losing electrons hence it will be 8.Symbol of the ion: O2-

Oxygen atom has 8 electrons, on gaining 2 more electrons it will be increased to 10.
Number of protons do not change while gaining or losing electrons hence it will be 8.
Symbol of the ion: O^2-