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Summary S-Block (Inorganic chemistry)
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Handwritten cheat sheet on S-Block (Inorganic chemistry) by JEE 2020, GATE and CSIR topper
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S-blockALKALI METALS
Physical
oLi, Na, k,Rb, (s, fr Radioachve t lmin), Caled alkali metas as
hey from hycsoxide on Action cwith wcter
)LiNask<RaKCs KE CAtomkc xadi); Li<K<NaSRbKCs
(density
9)LiNak>Rbls (I.E): LiKN1Sk<Rbscs CElechate IMehukc chaaoter
A Nask<Rh KCs KLi (xeducing chemater), The rodueing chaacko
depends aupon it eode poterhod ahich in tuo depends on
) heat of Yapcsizahan ) lonization ) haot of hydatn
ze
Sipce Li* hassmallersize hat of hylkationN
5) The Me, 83P B coheaire, cnes4 descase daun the gip
Li >Na k)Ca<RL CBP)
donic Mobily0 dSize of hydrcked ion
Sze of hydabed ions)
zlA) Allkai metals hae their body cente cubic CBec) sachuae aith
lco-cscinahon no. 8
8 Flame colos- Li- Camine Red ,Na - yellas, k- Llac Viale)
Rb- Redtish yiolet Gs- blue videl
9)oox of alkali melals are typicay chiie..Ccnpaunda of Alkali mstl
lase diamognshe. Supesoxas o alal mebal are
houeLar paxampehi
in waes
o Moct alkat metals salt dissole
Chemical utoris-hn
to lowI.E, & laa heat of
DHighly reachve due caih Hy atich andt wlh
ionic/cnystalite hydeidez on reackon
aater to asm canes pcndig eids hydaoxide hese hydoides
are educing. agents MO2
2
Coxidg) (pexoxide Csuper okide
6Li tN, 2igN
9Only i reads wth Ng
, 5) LiOH <NaDH< kOH <RbOHSCsOH Cbasic chaxacher
These meBals react coith compound containing adic hydaagen
oJbeale He
z) Al metul halides oo. solube in aator eKcept LIE
8)2MtS ’ N,S 3M + P MaP
9)Alali neal diche in b ammonia and gie blue,conduchrg
redueing paranagehe in naure. MG) NHs
M cNH,) [M(NH) Aromahated cahion
OycNH,)leCNHTAmnohiated o
OLiNaSk>RbCs Ccenpler osaing ahlity
Licoy Na,cO4<ikaco,Rh,coscao Csdubilitey
NaHCO, KkHCOs <RbHcOy<CsHCC Cselubilitys li Hcog soart erst
LisOyNa,s,<ksO, <Bby sOyl Cszs Csoubiu ty
They sheto diagonal relakion ship.
AlkAINE EARTH METALS
Be, Mq, Ca,Sx, Ba,Ra Cdisosed by madam cusie,)
Phuysical popesties
2Coheae fozes in hae ae shager than Akali mohls due
smallex t sodi ond eath metal ane haxder tan alali metale
aHighex MPR BP than consspnding vaue of
MP : BesCa Sx >EasMig BP-Be>Mg Sla Ba JSr
9Reducing properdy s weaher than alkali metalg BesMgKCaSSsB
s)Be &My do not gine colbxahian to flame. due to thair smallaze
highex iozir d.£ Ca- Brck Red,Sr-Crimson red,Ba-Apple gree
) AJAthee metals disore in hq NH,
Chemeal pxepesties
Excapt Be., all thse fomm hydideg on heahng vith As
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