Terms starting with N
31 terms · page 2 of 2
Nuclear Stability
Nuclear & Radiochemistry
Dimensionless
The tendency of a nucleus to persist without undergoing radioactive decay.
Nucleic Acid
Biochemistry & Polymer Chemistry
Dimensionless
A biopolymer of nucleotides that stores and transmits genetic information.
Nucleophile
Organic Chemistry
Dimensionless
An electron-rich species that donates a pair of electrons to form a new covalent bond.
Nu⁻ or Nu:
Nucleophilic Substitution
Organic Chemistry
Dimensionless
A reaction in which a nucleophile replaces a leaving group attached to a saturated carbon.
Nu⁻ + R–X → R–Nu + X⁻
Nucleotide
Biochemistry & Polymer Chemistry
Dimensionless
The monomer of nucleic acids, consisting of a nitrogenous base, a five-carbon sugar and a phosphate group.
Nucleus
Atomic Structure & Periodicity
m
The dense, positively charged core of an atom, containing virtually all of its mass in protons and neutrons.
r ≈ 1.2 × A^(1/3) fm
Nuclide
Nuclear & Radiochemistry
Dimensionless
A distinct species of atom characterised by a specific number of protons and neutrons in its nucleus.
ᴬ_Z X