The nitride ion in lithium nitride is composed of, Chemistry

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The nitride ion in lithium nitride is composed of:

(1) 7 protons + 10 electrons    

(2) 10 protons + 10 electrons  

(3) 7 protons + 7 protons

(4) 10 protons + 7 electrons

Ans: 7 protons + 10 electrons


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