Terms starting with B
45 terms · page 1 of 2
Back Bonding
The donation of electron density from a filled orbital on one atom into an empty orbital on its bonded partner, in the direction opposite…
Analytical Chemistry & SpectroscopyBack Titration
A technique in which excess reagent is added and the unreacted portion titrated to find how much reacted with the analyte.
Nuclear & RadiochemistryBackground Radiation
The ionising radiation always present in the environment from natural and artificial sources.
Stoichiometry & Chemical ReactionsBalanced Chemical Equation
An equation in which the number of atoms of each element and the total charge are identical on both sides.
Nuclear & RadiochemistryBand of Stability
The region on a plot of neutron number against proton number within which stable nuclides are found.
Acids, Bases & SaltsBase
A substance that accepts protons, produces hydroxide ions in water, or donates a pair of electrons.
Acids, Bases & SaltsBase Dissociation Constant
The equilibrium constant for the reaction of a base with water to produce hydroxide ions.
Biochemistry & Polymer ChemistryBase Pairing
The specific hydrogen bonding between complementary nitrogenous bases in nucleic acids.
Analytical Chemistry & SpectroscopyBase Peak
The most intense peak in a mass spectrum, assigned an arbitrary relative abundance of 100%.
Acids, Bases & SaltsBasic Buffer
A buffer made from a weak base and one of its salts, giving a pH above 7.
Acids, Bases & SaltsBasic Salt
A salt whose aqueous solution has a pH above 7, or one that retains a hydroxide group.
Acids, Bases & SaltsBasic Solution
A solution in which the hydroxide ion concentration exceeds the hydrogen ion concentration.
Nuclear & RadiochemistryBecquerel
The SI unit of radioactivity, equal to one nuclear disintegration per second.
Analytical Chemistry & SpectroscopyBeer–Lambert Law
The relation stating that absorbance is proportional to concentration and to the path length of the sample.
Chemical Bonding & Molecular StructureBent Geometry
A molecular shape in which two bonded atoms form an angle at a central atom that also carries one or more lone pairs.
Organic ChemistryBenzene
The simplest aromatic hydrocarbon, a planar regular hexagon of six sp² carbons with a delocalised pi cloud.
Nuclear & RadiochemistryBeta-Minus Decay
Radioactive decay in which a neutron converts into a proton, emitting an electron and an antineutrino.
Inorganic & Coordination ChemistryBidentate Ligand
A ligand that binds to the same metal centre through two donor atoms, forming a ring.
Chemical Kinetics & CatalysisBimolecular Reaction
An elementary step in which two species collide and react.
Nuclear & RadiochemistryBinding Energy per Nucleon
The nuclear binding energy divided by the number of nucleons, measuring the stability of a nucleus.
Biochemistry & Polymer ChemistryBiochemistry
The study of the chemical substances and processes that occur within living organisms.
Biochemistry & Polymer ChemistryBiodegradable Polymer
A polymer that can be broken down into simple substances by the action of microorganisms.
Biochemistry & Polymer ChemistryBiomolecule
An organic molecule produced by and essential to a living organism.
Analytical Chemistry & SpectroscopyBlank
A sample containing everything except the analyte, measured to correct for background signal.