Nitrogen triiodide, NI₃(s), is unstable and will spontaneously detonate to form a bright purple cloud of nitrogen and iodine gases accompanied with a loud “bang,” which suggests a release of energy. Considering the bonds involved, explain why this reaction is likely to release energy.

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2 NI3 :I-N-I: BI N₂ :N=N: + 312 :I-I: