15/2/2006	periodic law	n.	a law stated that the chemical properties and physical properties of the elements vary in a periodic way with their atomic masses (atomic number indeed).	38.1-
15/2/2006	tellurium	n.	the element preceding iodine in the periodic table which has a higher atomic mass than iodine	38.1-
15/2/2006	argon	n.	the element preceding potassium in the periodic table which has a higher atomic mass than potassium	38.1-
15/2/2006	alkali metal	n.	The group name of group IA metals	38.1-
15/2/2006	alkaline earth metal	n.	The group name of group IIA metals	38.1-
15/2/2006	electronic configuration	n.	A factor other than nuclear charge that determines the ionization enthalpy and size of an atom	38.2-
15/2/2006	nuclear charge	n.	A factor other than electronic configuration that determines the ionization enthalpy and size of an atom	38.2-
15/2/2006	full-filled subshell	n.	a jargon used to explain the exceptionally high first ionization energy of Be and Mg	38.2-
15/2/2006	half-filled subshell	n.	a jargon used to explain the exceptionally high first ionization energy of N and P	38.2-
15/2/2006	increasing	adj.	the general trend of variation of first ionization energy across a period	38.2-
15/2/2006	decreasing	adj.	the general trend of variation of first ionization energy down a group	38.2-
15/2/2006	increasing	adj.	the general trend of variation of atomic size across a period	38.2-
15/2/2006	decreasing	adj.	the general trend of variation of atomic size down a group	38.2-
15/2/2006	structure	adj.	the melting point of a substance is mainly depending on this properties of the substance	38.2-
15/2/2006	8	n.	atomicity of sulphur molecule	38.2-
15/2/2006	4	n.	atomicity of phosphorus molecule	38.2-
15/2/2006	decreasing	adj.	the variation of the basicity of oxides of element across a period	39.1-
15/2/2006	decreasing	adj.	the variation of the ionic character of oxides of element across a period	39.1-
15/2/2006	amphoteric	adj.	used the describe the behaviour of a substance which can react with both acid and alkali; a characteristic of ionic oxides with high covalent character	39.1-
15/2/2006	diagonal relationship	n.	a jargon used to describe the resemblance of behaviour between Li and Mg; Be and Al	39.1-
15/2/2006	hydrogen peroxide	n.	"the immediate product, other than hydroxide, in the reaction between an ionic peroxide and water"	39.2-
15/2/2006	aluminium oxide	n.	an amphoteric oxide besides beryllium oxide and zinc oxide	39.2-
15/2/2006	phosphoric(III) acid	n.	the product formed in the reaction between phosphorus(III) oxide P4O6 and water	39.2-
15/2/2006	phosphoric(IV) acid	n.	the product formed in the reaction between phosphorus(V) oxide P4O10 and water	39.2-
15/2/2006	deep red	n.	the flame colour of lithium / lithium containing compound	40.1-
15/2/2006	yellow	n.	the flame colour of sodium / sodium containing compound	40.1-
15/2/2006	lilac	n.	the flame colour of potassium / potassium containing compound	40.1-
15/2/2006	bluish red	n.	the flame colour of rubidium / rubidium containing compound	40.1-
15/2/2006	blue	n.	the flame colour of caesium / caesium containing compound	40.1-
15/2/2006	brick red	n.	the flame colour of calcium / calcium containing compound	40.1-
15/2/2006	crimson	n.	the flame colour of strontium / strontium containing compound	40.1-
15/2/2006	green	n.	the flame colour of barium / barium containing compound	40.1-
15/2/2006	body-centred cubic	n.	the metallic crystal structure possessed by all group IA metal	40.1-
15/2/2006	1	n.	the bond order of the oxygen-oxygen bond in a peroxide ion	40.1-
15/2/2006	1.5	n.	the bond order of the oxygen-oxygen bond in a superoxide ion	40.1-
15/2/2006	high polarizing power	n.	"the properties of beryllium ion which make beryllium peroxide not existing in nature, kinetically unstable"	40.1-
15/2/2006	oxygen	n.	"an immediate product, other than hydroxide and hydrogen peroxide produced in the reaction between a metal superoxide and water"	40.1-
15/2/2006	high charge density	n.	a factor other than availability of low-lying vacant orbital which makes the formation of complex with a metal ion favourable	40.1-
15/2/2006	low-lying vacant orbital	n.	a factor other than high charge density which makes the formation of complex with a metal ion favourable	40.1-
15/2/2006	hydration enthalpy	n.	the enthalpy change when one mole of aqueous ions is formed from its gaseous ions by solvation of water.	40.2-
15/2/2006	charge density	n.	the magnitude of hydration enthalpy of an ion is mainly depending on this properties of the ion.	40.2-
15/2/2006	increasing	n.	the variation of thermal stability of s-block carbonate down a group	40.2-
15/2/2006	increasing	n.	the variation of thermal stability of s-block hydroxide down a group	40.2-
15/2/2006	positive entropy change	n.	the reason explained why the dissolution of NaCl is feasible even though the enthalpy change of solution is endothermic	40.2-
15/2/2006	lattice energy	n.	"For a purely ionic compound, the enthalpy of hydration is depending on the difference between the hydration enthalpy and this value of the compound"	40.2-
15/2/2006	dissimilar	adj.	"For a purely ionic compound, the compound will be more soluble in water if the sizes of the cation and anion involved have this properties"	40.2-
15/2/2006	fluorine	n.	the halogen shows exceptional behaviour in the variation of electron affinity down the group of halogen	41.1-
15/2/2006	lower electronegativity	n.	the reason why the halogen lower in the group favours formation of compound with a higher oxidation state	41.1-
15/2/2006	yellow	n.	colour of chorine in organic solvent	41.1-
15/2/2006	orange	n.	colour of bromine in organic solvent	41.1-
15/2/2006	purple	n.	colour of iodine in organic solvent	41.1-
15/2/2006	triiodide	n.	the ion actually accounts for the brown colour of iodine solution (usually in KI)	41.3-
15/2/2006	calcium silicate	n.	the component in glass which is soluble in hydrofluoric acid	41.4-
16/2/2006	white	adj.	the kind of tin which has metallic structure	42.2-
16/2/2006	grey	adj.	the kind of tin which has giant covalent structure	42.2-
16/2/2006	inert pair effect	n.	the jargon used to explain the favouring of +2 over +4 oxidation state when moving down group IV	42.2-
16/2/2006	much higher	adj.	used to describe the difference between the boiling point and melting point of a metal	42.2-
16/2/2006	giant covalent	adj.	the structure possessed by solid germanium	42.2-
16/2/2006	giant metallic	adj.	the structure possessed by liquid germanium	42.2-
16/2/2006	zone refining	n.	a technique used to purify solid silicon	42.4-
16/2/2006	bond strength	n.	this difference makes SiCl4 reactive towards water but SiO2 inert towards water	42.4-
16/2/2006	carbon monoxide	n.	a by-product which is produced when SiO2 is reduced by C in an electric furnace	42.4-
16/2/2006	hydrogen	n.	the reagent used to reduced SiCl4 in the production of extremely pure Si	42.4-
16/2/2006	orthosilicate	n.	"a form of silicate other than chain silicate, sheet silicate and network silicate"	42.4-
16/2/2006	zircon	n.	"a mineral consists of orthosilicate, discrete silicate ion"	42.4-
16/2/2006	pyroxene	n.	a mineral consists of chain silicate	42.4-
16/2/2006	mica	n.	"a mineral, other than clay, consists of sheet silicate"	42.4-
16/2/2006	quartz	n.	"a mineral, other than feldspar, consists of network silicate"	42.4-
16/2/2006	incomplete d subshell	n.	"because of the absence of this in their compound, Zn and Sc are sometimes not regarded as a typical d-block element"	43.1-
16/2/2006	half-filled 3d subshell	n.	a jargon used to explain the electronic configuration of chromium	43.1-
16/2/2006	full-filled 3d subshell	n.	a jargon used to explain the electronic configuration of copper	43.1-
16/2/2006	manganese	n.	a metal which is commonly added to steel to make it harder and more resistant to wearing.	43.2-
16/2/2006	chromium	n.	a metal which is commonly added to steel to make it more resistant to corrosion	43.2-
16/2/2006	weak primary shielding effect	n.	a jargon used to explain the rather constant atomic radii of d-block element on moving across a period	43.2-
16/2/2006	diffuse d electrons	n.	a jargon used to explain the weak primary shielding effect exhibited by the d electrons	43.2-
16/2/2006	moderately increasing	n.	used to describe the variation in successive ionization energy of a d-block element which accounts for the presence of multiple oxidation states	43.2-
16/2/2006	+3	n.	"at the beginning of a d-block, this oxidation state is usually favoured in compound formation"	43.2-
16/2/2006	+2	n.	"at the end of a d-block, this oxidation state is usually favoured in compound formation"	43.2-
16/2/2006	unpaired electron	n.	"the number of this is used to explain the variation of melting point, except manganese, across the first transition period"	43.2-
16/2/2006	half-filled 3d subshell	n.	a jargon used explain the exceptionally low melting point comparing with its neighbouring elements in the periodic table	43.2-
16/2/2006	violet	adj.	the colour of V(II) in aqueous state (V2+)	43.3-
16/2/2006	green	adj.	the colour of V(III) in aqueous state (V3+)	43.3-
16/2/2006	blue	adj.	the colour of V(IV) in aqueous state (VO 2+)	43.3-
16/2/2006	yellow	adj.	the colour of V(V) in aqueous state (VO2 +)	43.3-
16/2/2006	white	adj.	the colour of solid ammonium vanadate(V) NH4VO3	43.3-
16/2/2006	green	adj.	the colour of MnO42- in aqueous state	43.3-
16/2/2006	complex	n.	a species formed when a central metal atom or ion is surrounded by other molecule or ions which form dative covalent bonds with the central metal atom or ion	43.3-
16/2/2006	ligand	n.	the molecules or ions that donate lone pairs of electrons to form dative covalent bond in a complex	43.3-
16/2/2006	chelate effect	n.	a jargon used to explain the comparatively stronger complexing ability of multidentate ligand comparing with the monodentate ones.	43.3-
16/2/2006	entropy effect	n.	chelate effect in the formation of complex is indeed a kind of this effect	43.3-
16/2/2006	EDTA	n.	"the abbreviation of a hexadentate ligand, ethylenediaminetetraacetic acid"	43.3-
16/2/2006	hydroxo	n.	the name of the ligand in the name of the complex when the ligand is hydroxide ion OH-	43.3-
16/2/2006	ammine	n.	the name of the ligand in the name of the complex when the ligand is ammonia molecule NH3	43.3-
16/2/2006	aqua	n.	the name of the ligand in the name of the complex when the ligand is water molecule H2O	43.3-
16/2/2006	carbonyl	n.	the name of the ligand in the name of the complex when the ligand is carbon monoxide molecule CO	43.3-
16/2/2006	nitrosyl	n.	the name of the ligand in the name of the complex when the ligand is nitrogen monoxide molecule NO	43.3-
16/2/2006	cuprate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is copper	43.3-
16/2/2006	ferrate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is iron	43.3-
16/2/2006	cobaltate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is cobalt	43.3-
16/2/2006	nickelate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is nickel	43.3-
16/2/2006	zincate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is zinc	43.3-
16/2/2006	titanate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is titanium	43.3-
16/2/2006	chromate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is chromium	43.3-
16/2/2006	manganate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is manganese	43.3-
16/2/2006	platinate	n.	the name of the central metal atom/ion in the name of an anionic complex if the metal is platinum	43.3-
16/2/2006	d-d electron transition	n.	the colour of ion of a d-block metal is used caused by this	43.3-
16/2/2006	purple	n.	the colour of Ti3+ in aqueous state	43.3-
16/2/2006	green	n.	the colour of Ni2+ in aqueous state	43.3-
16/2/2006	peroxodisuphate(VI)	n.	the name of the ion S2O82- which is capable to oxidize iodide I- to iodine I2 slowly if no catalyst is present	43.3-