Arrange the following molecular species in increasing order of stability . `N_(2), N_(2)^(+) , N_(2)^(-), N_(2)^(2-)`

Explanation

To arrange the molecular species \( N_2, N_2^+, N_2^-, N_2^{2-} \) in increasing order of stability, we need to determine the bond order for each species. The bond order is directly related to the stability of the molecule; a higher bond order indicates greater stability.

### Step-by-Step Solution:

1. **Determine the number of electrons in each species:**
- \( N_2 \): 14 electrons (7 from each nitrogen atom)
- \( N_2^+ \): 13 electrons (1 electron removed)
- \( N_2^- \): 15 electrons (1 electron added)
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