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Which alkali metal forms lithium nitride with nitrogen?

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A color-coded periodic table of the elements displays each element's symbol and atomic number, with categories such as alkali metals, noble gases, halogens, transition metals, and actinoid elements distinguished by different background colors. — alkali metal Modern version of the periodic table of the elements (printable).

Among the alkali metals, lithium is the only element capable of reacting directly with nitrogen to form a nitride, which has the chemical formula ${Li}_{3} N$ .123