What kind of gas is nitrogen and what is its function?

The electronicity of nitrogen is written like this because there are five electrons in the outermost layer of N atom, and to achieve a stable structure of eight electrons, three electrons must be obtained, so when two N atoms combine, such a structure is formed. There are five electrons outside the nucleus of nitrogen, and it takes three electrons to achieve a stable structure. These three electrons can be realized by * * *, obtaining electrons or using electron pairs, and nitrogen is formed by * * *.

The role of nitrogen

Nitrogen is chemically inactive and difficult to react with other substances at room temperature, so it is often used to make preservatives. But under the condition of high temperature and high energy, it can change chemically with some substances and make new substances useful to human beings. Nitrogen is very inert under normal circumstances, so it is often used as a protective gas. When welding, nitrogen is used to protect the metal from oxidation.