Which compound is formed when lithium reacts directly with nitrogen in air?

Explanation

To determine the compound formed when lithium reacts directly with nitrogen in air, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this case are lithium (Li) and nitrogen (N2) from the air.

2. **Understand Lithium's Properties**: Lithium is an alkali metal, which is known for its unique properties compared to other alkali metals. It has a small atomic size, high ionization enthalpy, and the absence of d-orbitals.

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