Inorganic Definitions Flashcards
What is an alkali?
A type of base that dissolves in water forming hydroxide ions
Define anhydrous
A substance containing no water molecules
What is avogadros constant
The number of atoms per mole of the carbon 12 isotope (6.02 X 10 23)
What is the atomic number?
The number of protons in the nucleus of an atom
Define atomic orbital
A region within an atom that can hold up to two electrons, with opposite spins
What is a base?
A species that can accept a hydrogen ion (a proton acceptor)
What is a covalent bond?
A bond formed by sharing of a pair of electrons
What is a displacement reaction?
A reaction in which more reactive elements displace less reactive elements from an aqueous solution of the latters ions.
What is disproportionation?
The oxidation and reduction of the same element in the same redox reaction
Define electronegativity.
a measure of the attraction of a bonded atom for the pair of electrons in a covalent bond.
What is the empirical formula?
The simplest whole number ratio of the atoms present in a molecule.
What is a giant covalent lattice?
A three dimensional structure of atoms, bonded together by strong covalent bonds
What is a giant ionic lattice?
A three dimensional structure of oppositely charged ions, bonded together by strong ionic bonds
What is a giant metallic lattice?
A three dimensional structure of positive ions and delocalised electrons , bonded together by strong metallic bonds
What are hydrogen bonds?
A strong dipole dipole attraction between an electron deficient hydrogen atom on one molecule and a lone pair of electrons on a highly electronegative atom on a different molecule
