Nitrogen

There are several paths.One of those is the Nitrogen Fixing Bacteria helps fix the nitrogen in the agricultural fields and passes that to plants.Plants when die release it again and goes somewhere else.The number of nitrogen atoms should remain the same unless it react with any other elements or compounds.

Denitrifying bacteria play a key role in converting organic nitrogen compounds in the soil back into atmospheric nitrogen through a process called denitrification. This process helps to replenish the nitrogen cycle by releasing nitrogen gas back into the atmosphere.

Elemental Nitrogen may be conveniently obtained by cryogenic distillation from the atmosphere. The liquid form is widely used as a low temperature coolant. It is an important part of our diet, and is found in proteins. Nitrates are very useful chemicals, and until recently, were obtained from immense deposits of seabird droppings, sometimes called guano.

well i ma doing test corrections on that question now, so i can tell you that it is either proteins, gluclose, or waxes, but i think its either protiens or waxes. :)

The question is totally misguided. Nitrogen is the most abundant gas in the atmosphere, representing around 78%. Its crustal abundance is not quite that high because it is not a very reactive element.

Nitrogen compounds are found in foods, fertilizers, poisons, and explosives. Nitrogen gas is used as a blanketing medium during the production of electronic components. Nitrogen is also used in annealing stainless steels and other steel products. Liquid nitrogen is used as a refrigerant. Although nitrogen gas is fairly inert, soil bacteria can 'fix' nitrogen into a usable form, which plants and animals can then utilize. Nitrogen is a component of all proteins. Nitrogen is responsible for the orange-red, blue-green, blue-violet, and deep violet colors of the aurora

For a 1 mole sample of nitrogen, the density is 0.0022g/mL. P = 2 atm n = 1 mole T = 310K R = 0.0821 V = nRT/P = 12.73L = 12,730 mL Nitrogen = 28.02 g (Mass of one mole of Nitrogen gas i.e. N2) [2 x 14.01] d = 28.02g/12,730mL = 0.0022g/mL

No. N2 is diamagnetic, there are no unpaired electrons.

The process is called denitrification.

Li3N; the lithium ion has a charge of +1 (Li+) while the nitride ion has a charge of -3 (N3-)

Liquid nitrogen is typically available for purchase from gas suppliers, welding supply stores, or industrial gas companies. However, it is important to adhere to proper safety protocols when handling and storing liquid nitrogen.

Liquid nitrogen freezes at -346 °F (-210 °C, 63 K).

I think the bonding is covalent as it is between two non-metals

rhizobium, frankia, azospirlium, azotobacter

Most plants use single nitrogen atoms, not N2 molecules.

There are two types of bacteria; nitrifying bacteria and denitrifying bacteria. The work of denitrifying bacteria such as Thiobacillus and Micrococcus is converting nitrates to nitrogen that is released to the atmosphere.

Nitrogen is a major component in air making up 78% of the volume of the gases we breathe every day. It is, however, not able to support life, so if it is the only thing being inhaled, the human will die within a few minutes. They would essentially suffocate.

Transpiration

The major elements cycled in nature are carbon, nitrogen, phosphorus, and sulfur, and oxygen which forms part of all the cycles.

Nitrifying bacteria can convert atmospheric nitrogen in to nitrates that plants can use in the soil. That is why leguminous plants having these micro-organisms in the nodules enrich the soil for nitrogen deficiency.

All organisms need nitrogen to live and grow. Plants take up nitrate ions from the soil, they are then absorbed into roots by active transport, the plant then produces nitrogen-containing compounds such as protein. This nitrogen then gets into the food web as primary consumers feed on plants and obtain the nitrogen-containing compounds. However, the atmosphere is made up of 78% nitrogen and is unavailable in this form to organisms. This is due to the triple bond between the two N atoms causing it to be inert. To be used by organisms, it must be converted to a chemically available form, such as ammonium (NH4+), nitrate (NO3-), or urea ((NH3)2CO). There are five main processes that convert nitrogen to a more accessible form. They are; nitrogen fixation, nitrogen uptake, decay process, nitrification and denitrification. The first process I will talk about is nitrogen fixation. There, the nitrogen is converted to ammonium; it is the only way organisms can obtain nitrogen directly from the atmosphere. The only organism that can fix nitrogen through metabolic process is bacteria from the genus Rhizobium. The nitrogen fixers are usually found on host plants, but there are also nitrogen fixing bacteria found without host plants. They are known as free-living nitrogen fixers, e.g. in the aquatic environment a very important nitrogen fixer would be cyanobacteria. Nitrogen fixation can also be carried out in high-energy natural events, such as lightning and forest fires. The high-energy breaks the triple bond between the two nitrogen atoms producing a significant amount of single nitrogen atoms available for use. The next process is nitrogen uptake, this is where plants or bacteria itself makes use of the ammonia produced by the nitrogen fixing bacteria. The ammonium is converted from NH4+ to N to make protein or other nitrogen containing compounds. A very important process that returns nitrogen back to the nitrogen cycle for use is the decay process. When organisms, die, nitrogen is converted back into inorganic nitrogen by a process called nitrogen mineralization. Decomposers consume the organic matter and this leads to decomposition. Nitrogen contained within the dead organism in converted to ammonium, it is then available for use to plants, or transformed into NO3- (nitrification). Through the nitrogen cycle, food-making organisms obtain necessary nitrogen through nitrogen fixation and nitrification. Nitrogen compounds are returned to atmosphere and soil through decay and denitrification. In crops, few plants are left to decay back into soil, so the nitrogen cycle doesn't supply enough nitrogen to support plant growth. Therefore natural or artificial fertilizers containing NO3- or NH4+ compounds are added.

It is called Nitrification. Some bacteria and lightning does that

The simplest answer is that none of the oxygens in N2O5 have a -2 formal charge, so giving nitrogen a +5 formal charge would lead to a charge imbalance. Since the molecule must be charge neutral, we know that the nitrogen must have a different formal charge. (Proof by Contradiction)

The more complicated answer requires a discussion of the bonding in N2O5. As explained in the video in the Related Link, each of the nitrogens sits touching three oxygens, with one of these three being shared with the other nitrogen. The "middle" oxygen is single-bonded to each nitrogen, meaning that the oxygen in question has a 0 formal charge. On the extremities, there are two oxygens that are single-bonded to a nitrogen and two oxygens that are double-bonded. The single-bonded ones have a -1 formal charge and the double bonded ones have a 0 formal charge. This makes the total formal charge coming from the five oxygens to be 0+0-1-1+0 = -2. Therefore the nitrogens must each be +1 since the structure is parallel and the charge must be neutral.

Oh dear what a strange question. In simple classical pre- GN Lewis octet rule following the definition of valency the valency of N is 5. two double bonds one single surrounding each N. (this old theory would give 10 valence electrons around the N) From an oxidation number point of view (sometimes termed valency these days) the N atoms oxidation #'s are +5. However if you apply the octet rule you get a different answer , involving charged structures which in valence bond theory resonate. This is I think what the answer above is getting at.