Avogadro number

Number of particles (atoms, molecules, ions) contained in one mole of substances. It is represented by NA and is equal to 6.023 * 10exp23.

Número de avogadro Avogadro number

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Chemical Glossary Terms

Chemical Terms begining with N

Naphthalene

Polycyclic aromatic compound of formula C10H8. is a white solid that melts at 80ºC, with a strong o...

Neodymium

Chemical element of symbol Nd, belonging to the series of the lanthanides, of atomic number 6 and mo...

Neon

Ne symbol chemical element, belonging to group 18 of the periodic table, of atomic number 10 and ato...

Neptunium

Symbol chemical element Np. Belonging to the series of actinides, atomic number 93. is a radioactive...

Neutralization

Chemical reaction between an acid and a base such that pH = 7 is obtained. In essence, the combinati...

Neutron

Elemental particle located in the nucleus of the atom, mass 1,675-10e-24 g and without electric char...

Nicotine

Tobacco alkaloid, it is presented as an oily liquid, volatile and colorless, it is soluble in organi...

Niobium

Chemical element of symbol Nb, belonging to group 5 of the periodic table, atomic number 41 and atom...

Nickel

Chemical element of symbol Ni, belonging to group 10 of the periodic table, of atomic number 28 and ...

Nitrate

Each of the nitric acid salts by substitution of the hydrogen atom by cations. Nitrates are usually ...

Nitrites

Salts of nitrous acid by substitution of the hydrogen atom by cations, are soluble and can melt with...

Nitrogen

Chemical element of symbol N, belonging to group 15 of the periodic table, of atomic number 7 and at...

Nitroglycerine

Trinitic ester of glycerin obtained by reaction of a mixture of nitric acid and sulfuric acid on gly...

Power level.

Energy state characteristic of the electron in an atom. The level is represented by the main quantum...

No metals

Set of elements that do not have the properties of metals. They are located in the upper right part ...

Nobelio

Chemical element of symbol No, belonging to the series of actinides, of atomic number 102. It is a r...

Nomenclature.

Series of standards established at the international level by the IUPAC to name and represent the di...

Normal

Way to express the concentration of a solution that indicates the number of solute equivalents disso...

Electronic cloud

Negative charge region around an atomic nucleus, associated with a certain atomic orbital.

Atomic nucleus

Central part of the atom that contains most of the mass and positive charge. The simplest nucleus is...

Radioactive nucleus

Unstable nucleus that tends to disintegrate until acquiring some stability through emissions of core...

Nude

Type of atom that is characterized by the constitution of its nucleus and by its behavior, more than...

Atomic number

Number of protons contained in the nucleus of an atom. It is symbolized by Z. It coincides numerical...

Avogadro number

Number of particles (atoms, molecules, ions) contained in one mole of substances. It is represented ...

Oxidation number.

Figure that is assigned to an atom, a molecule or an ion and that reflects, qualitatively, its oxida...

Mass number

Number of protons plus neutrons that has the nucleus of an atom. It is symbolized by A, known the at...

Quantum numbers.

Integers that arise when solving the equations that describe the energy of electrons. These numbers ...

Avogadro number

Chemical Glossary Terms

Chemical Terms begining with N

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