- and d f-b lo ck elements (Transiton elements) d-block elements 4bese elements the eJectron enters ditferenttatng In shel) main Ch-d orbi tals d-blolk elements: d-block elements There are mainy senes three d the to (Se 3d-Series (La t Hg) Sd-series cd) to yd-series and sueh as Called are these and Acininn begins with CAc) is incoplete. 6d-series Note: Trnsi ton he e lements elements are atmic s tate TrusSitton Caled cd, Hg Note : in ther elements roup-)2 oytdation stoes hare atomc state Confgusation Common d-subshel ComOn oxidaticy in theiY either stes complety Contain +heir filled and hence, as are ful) weJlas in their not regarded me tals. transition as 2 4s Zn30, 45° +2 2n sdl°6s Hg 4dl ss2 cd Similay, C 2+ *2 d-blojc elements elements transiton AJI d-block elements but tansition elements. not are all table : peidcie in the lasge section Positon between d-block occupies +he The perodic in the LlocKs table Electronic Confguaton: In geneal, +he e these |-2 Cn)d e lements whee, lectrontc Confrqutation Cn-) 2d- Series Sc = ns the stands for d-orsitals. Contai ning CAr] 3d'4s 1, T= 22 penultiunate shell, [AJ 3d 4s and W |Ar] 3d3 4s2 V=23, 3 [Ar) 3d54s' Mn 25 R= 26, CA 3d6 4s2 C 3d9 452 but ot 3d4 4s2 CADsd 4s} Co = 2 , 3d? 4s2 not 4s, but 3al° CAD Ni =28, Cu = 24, due to Trreguatity Note: stabilitg CuSubshel|s.Discussed iy obsevecl in hat-fled and Atonstruct )ed full - f obSetved in ireguarites Si milasy, Note: Mo 4 Ag Pd (4dss), ss) (4dlo Sd-Series. 6s) Aulsdi° and 3d-Series elements: Mn Sc Fe Co Cu Zn (30) C24) 4-d-series elements: Mo Htrium) (zirconiu) iobiu (molybdemu pd (Paliadiunm) Ag (s:lver Ru (Rhdim CRutheniwn) Techne tium) cd (Cadmiuo) 4 Sd-Series elements: Re W La Hafniun) (Lanthanwm) ( (Tantalun) Tungsten) Cmerc). (God) (ridium) (osmiiu) CRhenim) Grouf 3 Co Mn 3d-Seies Nb 4d- series Au pt Ir Hg Ac G -Series (Actiniun pro per General Metallic :(Tiransitonelemets) lements e the d-block Hes d transitta A) the characder : transtton elements all the Nely pro peies Such as metalltc malleability. ductility conduct:vity and high typica ensile an d strength electrical lustre. 2n, wjth +he typt ca) hause normal elenents a e metals. display hightherma metalllc more at Cu La sd-seits they Ni 12 cd Os Re W 1) Ru Te Mo 10 tempetes. c lose acked cd, Hg, Mn, stctàes centreod Face Fcc Melting The meltihg and Ceroparson Transiton elements 11 the 1000 C " depend increases to paticrpate +he Mo 4d- s eries Sd- series In Zn, has has W Among these three, cd, tty have paing ct to due trnds Periodic elements) bond wn paired d-electng Mp. highes Mp. M-Pc tungsten highest M-p. =34ióc Cr |W> Mo > relotvey louw all above tiGn. de lo calza banding has mel the highest 3d-seies with metallic avai labi lrty uwjt the elements and p-Blork transiton elements strength o pon he transtio typically elements. M-P: Solid State. Cubic. points of boiling hig h usually in dis cussed points : boiling and will be c lose pacIing body Centred b-cc Lo 5 he, Cubic. hexagonal hep are stnuctes close packing The melthg points 4 boiling e lectronS. the boiling points to thOSe re similas and Atomic 3) There electrons coespondngy and tu +he in the the felt by chage effectve tncompletey charge hucleas then Si2e The atomic close to Cr to additton d simltanous everse effect by the from the i wancl these tuo alter mech anothe9 ne very are Cu pull d moviny huckus +he oPposing effeots Outer the Serening +he from becau se eerciSe 3d- level to electror Ce tractien elements from fer the radii from nuclea hence and ihCreases d-orbital s +hemselves also +he shild nucleus are added and ns - electrns because, righ t to + he ekctrons As the Ch-) d orsitals. and pla ced chasges posttve additionl radius atom ic in from left moving radius ionic decrease qradual is a 6 ioniC radii : atemic 4s -ekctrns As a esutt adit do no G to Cu Gaph: atomic Radius T sd-series. 3d-series udsees Sc - Mn Y La Hf Nh Mo Ta W 3 SeCond oo laity Simi Fe Co Ni Ag cd Ru and Pt Au Os Re tn. /3d-Seies) Cu C4d-Series) Hg. (sd-series. transiton Series : +hrrd Sd-Series) & 4d ie; ( transithon {ncrease in frem first Si2e from Secend but expectedy Small change ember are Contraction Sanne member to member memn ber, to therd Sometmes Si2e this there Si2es Second colwmns Ih ver ca as elements, due to lathanide iS The pars ements d Nb-Tà, MoW, e te; ZrHf, Such as he almos t POSSesS pvo peaties. 3+ 2+ The ionic (4 Sane +he +heir trends as M radii. atomc toansiton metal) Density: tansition +he lnes The atomic vo M an d M follow sane are elemen+s nnerghbowting 2 GioupS 1 and elements Compased witth oensities d the trnston me tals +he elements with The Osmiung 0s) : the 2 2 - 5+ ae hgh. densites hrghest 3-cm3 low tridium T : and are 22-6| g-Cm Ionizatiorn engies : jonrsation potentialy The ffrst |ie between elements. the values those toansitton elements S and p-b lock iregulay trend! Thee is enthalpy In 3d the 3d-seies 3rd highest hig hest is engy jonisatio -frst tonisatton metels. has jonisatton in the 15t ioniSation enthalpY fer for hig hest ergy Oxtdation states : Trnsiiors echib t elemen ts ox tdatio rang e ef utde Stotes 3d-seies : Ti +2 +2 +3 +3 +3 Cu Co +1 +2 +2 Fe Mn +2 +2 +2 ++2 +3 +3 +3 +3 +2 +5 45 +5 +6 all4he Cr esehibits and CRuthenium) Otdaon states oxidaton States eehibits Ru +6 ++6 from + to frm +2 to t6. all thne Os (os nium) ha a mai mum oxidaton state t4. equal to ay shouns by State hghest which is +he +8 lo Oxidaton e lement. +8 +8 Os Oy more Cad). ttan sttl (sd). Note , more Mn(3d5) +2 C Note : Cuy mini m shows Ag, A ,Hg oxrdaton +1. state ionic Fomaton Transitios bonds) han statle elene ts in the (n Creast ng Covalent compounds; Com pouunds and fern lower Compounds ( tonic ionic oidatn states . oyidaticn ionic State, Covalent decreases o yetdation Stat chaackr increaSes. chaacter ulk. an's Faj (1: +hein oxrdes I h lower hiq hes oxtdation State, bastc acrdrc +heir oxtdes are Shee as basic . MnO MnO ( Mn = +4) anphotec. acdic. CTo be contihued-----). standasd +he Trends potenialss E}values : the portentia Electole electrode lectro Posiive character. stondood eccton potentials for +he Element (volts Element -)-63 Fe -)-18 V Ni -1.19 +03 Cu Mn -0.76. has posiive E value. (u Note: -0-4 4 Co -04D C E Cvolts) Electrode potential Subli mnaticn erey ToniSahon enegy vales depend upen the metal +FE. TE, (a H;) tydratn eherg Note standad will le E valus) poteri als electroe £lectro chemisty. dis cuss ec Foomathon o Colouud ior53 particular d-a Spectrum +he the colo s transmitted the Coloui ahs rsed length wave when colousecl appear Suhs tanes in waeleng+h ard hich 12 (nm visikle +he absor b ligtt region co thrans mit we the See o colo comple mentay wawelengths absorbed they by the the co loun o Compound Colous absorsed Complementay coloui (colow o bserve) Yellow -eey violet 400-435 Yellow iiii: 435- 480 440 440 560 blue reun-blue b luereen 9reen S95 605 605 red purpk Violet yellou-ree yellow S0595 oTange slue/rdigo reen blue ornge blue-green Red +he Sone Colous trans(tom Caquated) +3 +3 +3 Sc 13 meta Cr -’ colous less +3 T;t 4 ->Colout less Co violet violet Pink Co N;2t ’ puple Pinl< Mn bJue yellow 3 + blue Cu zn 3reen colourless violet Configratcns metal ions are d, with Note: colou less. Complex formoion : Compounds ahe Compex which hose neutral Co aunins the metal mole ate s givin bind Compex Spe cies. 2+ 4 [cuCwa. Cptcl etc [e nwmbey o transitfon The cempounds, the ( due to metal Catadytic Transitton metals fer a compatatvey +ha and cormplex Smaller auvaihbi lit vacan +heir Compond s d-ortital s. ppeatY: metals ond ase Khown to act |4 vaiah le oidatton due to Catalysts g ood as 5 tates. Contact proass Habers proess Fe Catay tc hydgeation. Catayst. las-Natta z ieg Ticl4 decempoSitcn entons reagent pro@ss wacker pdcle Cucls Compouunds : interstéial (12) Fermatn Irterstéhal shen i riside S mal| the pro@ss DeaCon are those Copounds shich H, c (od atons lattices d are N metals. fermed ahe trapped usally They Cystal non- Stoichmetn'c. ete VH eg Interstial Coro pounds hawe hard, +hey They Conductvity, +hy ahe hig b etain c he mically meltthg points, metallic ibert fesm aion : As 4he Solutin Solid an properties : Magnetc appIred the by repelled are Substances mag retc magnetic magreic magnetc which fied, weak y ase Substanes Con tains attracted ky at least he unpaired Substan es electons all paured Cotains which ero and hard are fermed So ready C Bronze pasa Can be (Cu + n) Cut Sn). Brass Dia atoniC 5i2es, point meitng hgh have oten alloys the alloys Smooth qiving meta) anothe replaed by Siilas me tol latti ce ystal hence in +he hawe elemen+s transiton are strongy one attsacted by maghetic magnetic field. +he Note: R, Co, Ni, is expreSed Paa-mag et'swn monent unpalsed wshich ekctrons. is in terns o related to the mag nettc numbe o 16 B. M. paised ekctns. nmber d hene, unrt Aohr magnetun. B. M mag netic f m noment. 45gd! +2. Sc . n=) 445 2d SC 732 B.M. R=26: +2 Cun pad es) =4.q y 24 4C42) Can be frst remved BM foom valence shell Electrn 2in C, Unike Cad mium and Mer CuY as well as zn,cd, Brdaton State. Ha euhibits 2+ +1 and Mercwous ion, H3, CAia) 2.+ and 4+2 not Cpara) solids, 2n, cd t 2n, Cd while impertant Jrquid. pGoxide, do So. uShile covalent, Hg cl Some hydsode, ferm does not Hg hee as, ate cd d 2ncl2) elements Conpounds dichromate PotasSn preparahon; chrooite Rrm cun be preparec Stepi): from chromnitt oe the fustan i-e Canbonate Na/k chrmate. to 9 ive co t 2 Ryo, + 8 Na,Cr 8 (yello solutien) fre Sodiu Stepi) with So diun By in chrmite ore Hves chromte acidiftCatton o Sodiun dichromate. + NasS2 heacts Step i): with to 9ive + Na, CsG 2. Nad. (Potassiwm dichemate) HO ’ Solids, Zn, cd where as, fern does no t hydoxde, thy ’ Liqud Peroxide, pero xide, cd do So while ushile Covalent, 2nclg, c d , jonic. P.P.c Prepaaton and d-blocK Properti<s c elements : (potass'um kaco(Pot KMnly 2-) 3) Iron. Copper (I) Cnpounds ct Cu Sou dichamae) (Patassium permanganate) Corpowds d (T) Compounds D 5 Cuo Cuc2 H, o Compouads d Zinc 2n0 2n54 Conpounds o 2) As,o Ag are Potassium dichrom ate, (Karn): Preparation choite From Can be the e; prepared Cus b omate chonit ore usin c free chroni te frem access air to Sodiw gi ve chronocte. + 2 Fe,03 (rellous Solutia) stepGi: H,Sos So diun chromate acielif Catien c sociumn dichtmate. qives + NasSoy t H, o Na,ro4 Step (im): Na,c 9uacts tu uith + Na, c (Potassiwm cichromate) qive 2 Nacl Cnystall'se out. Cystals orange Note: inter Convert6le o în dependng solut cn aqueous the Soltn. ate dichoates and chromates No te: Solubk than more 2Ht 2 dicomate ions : chemate stctue ot 126° -CY 163 Pn ties d chemfal prrper oidising popeaties : k Na dichvomates ase and used as primay a standad redaces anaysis. |n strng soltfon, acdt oxidising +3 it +3 2 agents. oidises It +2 sulphides to sulphu to Shty and to 234 3 H,S + 2c3t 3H + 2 7 3 t+ 2t s+ 3 Sn 3 Sn + + Ho Potassiwm pemangarate (T Preporaton alkal witn a s Fusros is pepMed by a hydoxrde dank metal aadic 2 agent like oyidsing Ko Mn°t) rees soluon his produles Mno fust on KN Oz neutrey dis pvoprtiornates usch pesmanganate Mna) tu 9ive (po tassiwn manganate). Mn9 2 KMn O 3 + Mng, + Ka Mng, Commer aaly it is Note : ordate fusicn Mno, prepaecd followed by by the allalhe oxdatron the electoly tiC mang anae ian). 20 fused wttth KOH MnG KN O air r ) Frm +2 Mn Manganade icn ) MnOy electytic oxidat o alkalhe Soluhich. CManganatein) 2 CPermanganatein) to pe manganate. Salt : peroxo disulphate ordised +2 Mnt 27 ++ 16 H Salt 2 2+ 2 . Mo Cretrahedra) Mn paramagnetc. (reun) dia magnetc MnOt CPurple) Properties o Heatng effect: when heated, it manganate 2 KMng, decomposeg at 5 13K to give Mng eduad Mngf Note medium: (i)aadicmedium: Mn in shrng Mn 2 aylalihe Mn MnO4 alkalie/ heutral fainty Lh medium: Hh_0 sttng Mneg and alkalihe fainty in a cdic, to lkaline Mn medium: 2 th Mny oH MnO4 oxidising KMne: popeaies o Ln aadic solution (a) D oxidises to e 3 to L so to S : 2 to Cg to to S, NO to 2+ 2 Mng 2Mng Mn 5 Go4 2_ Mn 2 +3 Ho 2 Mn 2 Mn |6 Ht 2 Mn +2 2 1 2 M 2 Mn4 2 Mn+2 (b) In neutral to 2t Mn fainty al Kaline Soluttos Lodate (ro) to 22 2 to SOy S,O3 Mn 2 Mn i-e I0 t + 2 OH 2 8 Mn >8 Mng t + 6S t 2 OH (thio Sulphate) 2+ 3 Mn Mnoy + 5 Mn, t 2 H,o both are strong oxidising agents. Note Note: basic Oides Mnds Cr0 Amphoteric oxides Mng, acidic 4 H+ oxides Ferous 23 Tron : Compounds o Gren vitriol (eso Sulphate (or Ho: Prepasahion : this should be kip's in apparatus a O iron. reducig atmosphere in into oidatin prevent +he order to Frem made Ho so + Hy Fe sos R+ Ht, Sa Note: dilate action pre pae d by +he waste: FesO Fes H, S. + (Peraus Sulphide iron Pyrite : + 2HyS 2Feso 2Fe S, fe Sou t + Hys04 (t tt,o + co, Properties Heatng esfect: 306c I46c anhy dus) [Colounless] Pe soy (ren) Nou, 2 Fes Fesou high 4np." (run) cyande. Salt| hr's Mo Salts ferro(Potassium double homs 6 iv) 2+ 3+ Fe 3t Ht + Au t i) 4+ (Pesa Slphate Lt Fesou KCN pet) (white chlornde) cuic (mer chlertde) (mercurous Hg,ciz 3+ Au: Cr3+ Mn agent NO). ulphate) reducng asacts a fesrous fematnq nitoso (No) tusns todue broum ferie basic Felo) Son sulphate C 4 ferric yellow brownish- +he oxide nitnic with RSou 4 kasic todue the eXposwre atmosphee, it tns base) On weak Fe +(o), tSos. 24 to to due acrdic 2 dalysis hy ItS is Solutio 25 oxide : (R, o): Ferric oxide: Pre paraton: 2 +- So esOy 3 t,o. 2 Re (oH ion Pyrites : 2 Propaties,: H Fe, O + insolube reddisb-broun powder, in water but iS Solusle in acd. Amphoterie natÛne: 6 2 Fecdg Hd 2 + 3t o H, 0 Na Fe O, NaoH Sodimfee) Na Fe o t Sodiunferrite) (Sodiun hypo chlorite) and Note: cl oidisey Naocl Heres itu Na, FeOa NaPeog 2Na RO, + 6 ch t 4 NaoH 2k 2 Nac| + t FèOu 2 Nas Sodiumfeate(: 1300c 3 Ho. feric chlaride (ed): 26 anhydrDus Fed : Preparaton : by o btained + Fe dy 3 ds rm Fed s in a dy cl, S+ream o 2. Fe filing heating heating oxidrsed black solid) aur to give 2 R3 30, 122 Hydrated Ruy Prepatfen: Pe CoH 3 tel 6 Hu 2 Fed + 3 H_0 3 CO) 4 6 Hu 2 popeties: anhydus (anhydrau) 2 Fecl. 6 H, o Fe + 2 Hy dare 6lack solid Yellowish- broun Solid. stes Cy bluGantated, e Con 2 Solution evaporaton CMalachite ore) Culot)Cucoz (ilut) + o 3cusoy H,soy 2 CucoH H,sOy 2t0 Cusout ltry givinga + (di +Cul HySo4 Cusoy Cu so, vitrio) S Ho: gas dimie NOC|. prparaion: blue Coppere 300c, Sulphate Copper C () Compownds o Pedganhydhous Note: Sublims at chleride) (nitosyl NOcI Fedy. Nty 6 additon s: pownd S Fomain dt om C 2 2 +Fecd 2 +Fedy Snd, 2 +Feu Sncl4 As agent: + Hyo CoH)] RCHo), Hyot + 3+ (o 2+ +3+CU. hydory sis. acrdic todue aueous Solutten is 2+ Se pahat out Cusoy SHo + 2Hsou t 2Cu 0 (dihutey 28 Cooling. 2Cusou t O, 2 Hy0 Heoti ng ekct: on exposwe Cusg: SH0 to Sunlight (slue) |00c usoy3Ho Cusoy- Hy0 (pale Slue) 256 c Cusoy onhydus O, + se + Coucos}+ 6N thyoH Cusou t (white) Cuo + tsoy (Schweit2er's veoent) + 2 Kesoy (whitepot) 2Cusoy culcw), (4ellow) 2 Cuso 2icEy culc Noul, NO, i-e; 2CuCN + 6 KCN decanpes 2 CuCN J (garogen) 2 K3 [cukN)4 (co louslkss CuCN dissolve s in eess KCN. Solas le Congee). + aysoy CucoH), Cusoy + (slue) Cu t fe Cu Fesoy + nSoy. (Cuo): Cupric oxide Oxide lack is Called co Copper Prepanation: 4 A CuO 2Cuo 2 Cu t Cuo t Ho A CuCoH), 2 A CuO + 2 Cucot); CuCog (Malachii Popestes: with Llack powder, insoluble in water. acids: 2 Ha Cusou t Cuo t 4 CuO (4 I|00-1200c Reduction. with Cuo + H 2 Cu,o + O, H, c, Co): Cu t t o Cu t CO H,o 29 30 2-H0): Cucl. : chloride Cupric Prepotoy : CuloH), () Cuo (o) Cu (o gi ve Cystallisaton dissol ved is Solti on on vesultng the Hcly Conuotated Cuco Cucl reen Cystals q 2 Ho 2 cucs 2Cu Cucl + tho (o Propesh'es: Compownd deliquescent water. Soluble i Solutron is dilde The ree and is Solutton c hanges to yelloo added. blue Coloo is The 4ellow Colus due to cnantratd cshes Solutcn Cucls + cucl, but +c is Cation Cul Hao), Comple anien Cucl4] Compk< due t and Agueous is blue - Conentratd Lt readiy acdic 22t0 (cupous chloride) due to hydoolysis. Culo), 2 Hc. Rodu ction )(6 cu/ sos/H/snd : with 3 Cu (w) Cucls nasant H (or) Sny Cuclh t NOw 2 Nao 3 Cu(o), + cue Culot), + 2 Naa Cucd, 3 Cu (oH), (Pale blue PPt) 340 + 4o ch |Cu (nta (deap blue soluten) Compounds d ostde: Zinc oxide: Zinc' hinesecshit) zno):c (o) wool phi losopher's prepantion A A 3 2 Zn0 zn(Nos), H, Properkes: 32 1S a powdex white ag ain tuins beating IHt dissolves becone s yello white on Cool ing and actds readily in mi neral bases(allcalis). So, it is huadiy Stacts amphoeric and natuhe. 2 Ho Na,Zng t NaoH (Sodium zincate) (or) + H0 2 NaoH Zn0 + ty0 Na, 2n0, - 2 Reduction uith 3 20 H,o Zn0.CoO Co(N°3), (o) Cobalt( ) znCoO, bitrate: Rinmann's gren 2nsoHyo (white vitiol): preparaion: 2nsoy 2nso, + H,_o properties: 33 colourless, Cystallihe solid, Solusle wateY. I t is epsom Salt (mg5aH, o) iSomephous ith 2 + 2n(oH), N aoH (shite) 2NaoH Soluble in 2nsoy:THo 2nsou' Sve C opounds Silv NaoH. 296c 106c nitrate (salutle Canpksy Luna CAgNo): prepahtion; iS dilte prepared by Ag dissolvig Hg 3 Ag + 4 HNO (dilute 3 Causte): metul in 34 pvopeties: 0 #atng etfect: 2 2 Ag N, Reaction 3 3T, + (a) 6 Ag Nog (esess) (Lodic acd) +- 5 HNO. N HyoH : Ag, 0 J, 2 NHhyOH + o + 2 NH Ng (bounpot 2 This pet o (esuss) with Reactior 4 3 3T < Ag N°g Ag Io, + S AgT (silveh io date) 0 eess dissolves in NtuoH. + 3Ho Co3)o# 2/Ag (olens veagent) 2 Ag + Cu(Nog), 2 tg t 2 with phosphire Cpt): 6 Ag Nog t 3 o 2n(No), Silves oxtde : A9,0: 35 Preparation; Ag, o t 2 NaN2 NaO! () Lt is a Soluble (n wter. spartngly roun Soltd , heating effcct : 2 Ag, O tg,0 + H 2 The aueous solutien is steng basrc. AgoH. Ag,O A (dy) wet Ag, o AgoH R--P (ethex) R-oH + (adccho) The-end + 2 AgT Ag C.