The nitrogen cycle is the system by which nitrogen is converted into different chemical forms, some usable to humans and animals and some not, as it circulates among the atmosphere, the land and the oceans.
In all atoms, the number of protons and the number of electrons is always the same. So nitrogen has 7 protons and 7 electrons, calcium has 20 protons and 20 electrons, and tin has 50 protons and 50 electrons. The number of neutrons is very roughly the same as the number of protons, ...
The percentage of nitrogen in the air we breathe is 78 percent. This means that the vast majority of the atmosphere we breathe is nitrogen, with...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your toug...
The O2- ion has ___ protons and ___ electrons. What is the formula for an ionic compound made of carbon and oxygen? What is O2 on the periodic table? What is Cr's oxidation number? What does nitrogen and oxygen make? What explains the negative charge on the oxygen atom within the ...
Dinitro is defined as with two nitrogen groups per molecule. An example of dinitro is dinitrobenzene, which is an isomeric compound formed by the reaction
A base (in chemistry) means having a pH (on the pH scale) of 8-14.It is a substance that can accept protons. A base that is dissolved in water is called an alkali. What are the properties of bases? Bases have a bitter taste (opposed to sour taste of acids) ...
Rutherford concluded that the hydrogen nuclei could have only have come from the nitrogen gas - which led to the theory that the nucleus of a hydrogen atom was an elementary particle, which was later called a 'proton'. It was also postulated that such protons existed in the nuclei of all ...
More than three decades ago, the European Muon Collaboration published a surprising result on the spin structure of the proton: the spins of its three quark components account for only a small part of the spin of the proton. Ever since, theoretical and e
Molecules (water, ozone, nitrogen gas, sucrose) Ions (Ca2+, SO42-) Polymers and Macromolecules (cellulose, chitin, proteins, DNA) Mixtures (oil and water, salt and sand, air) Complex Forms (a chair, a planet, a ball) While protons, neutrons, and electrons are the building blocks of at...
To be an element, a substance has to at least have protons, since these particles define the type of element. Elements consist of atoms, which contain a nucleus of protons and neutrons surrounded by a cloud or shell of electrons. Elements are considered the basic building blocks of matter be...