Why isn't nitrogen the most common element in the universe?

Answer 1

Basically, it's because nitrogen doesn't react easily with a lot of chemicals present in the earth's crust. Oxygen, however, does, so there's considerably less of it in our atmosphere and a lot of it locked up in solid compounds on and within the earth. So over the billions of years, it has "built up" in our atmosphere, and today comprises nearly 80% of the air we breathe.

Answer 2

Hydrogen is the most common element in the universe due to its abundance in stars and gas clouds. Nitrogen is less common because it is formed through stellar nucleosynthesis in heavier stars, not as abundantly as hydrogen.

Answer 3

cause nitrogen is common in our atmosphere an no other planets have a similar atmosphere

Answer 4

Nitrogen cannot form solid minerals on the Earth.