Does Nitrogen gain or lose electrons?

Nitrogen, on the other hand is in group V and has five valence electrons, so it needs  to gain three electrons to get a full valence shell.

Explanation:

Thus the most stable state for nitrogen ions is the N3-ion.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.