Class notes physics Physics : Textbook For Class Xi
Class notes physics Physics : Textbook For Class Xi
Mechanical properties of solids class 11th Physics ncert neet
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nath
Lewis osoach or y
CHECA) BoNDING C+ H*
Deine Chemial Bond? on what s Leuos 4ymbol "
r1he orct o attraction cohich tholds the atoms dy Kepreenira elemerd usng it mbol and itavalen
egehen oth îna molecule is called chemical eleona A called leus &ymbolore
dot Aymbo
bond
Wuy. hat ane the vavuous heovies o covclend bond
,B ,.0:,::ie
wtat s Aigniicon 2 leois Aymbol 7
o'maion2 dr Cornmon vaenud eleme con be calulakd uaing
kossel- deusisv(. euois s mbol
2 VSEPR- valente e ane Hor le than valeny =velenue"
valenue one drmore Valeneaeny?-valenu
2VG1 Valenc e
Mor
Cuy hcut 4 koael 1ois approcch
-
to explaun hebond
omaion
form bond wcu to
hat the need to
A oth beliurd electrronic (ortgwcuhbn
acheie necu®st noble gas
oiAoCus on ovaarsc compound and cplaun
ormahon bond whene askoaeocuuy
covcunt
on înorqcanic compourdand exblasn omahon e
Onic bond
KOAel aPProachfor NaCl o meuh'on hemical bond?
Na Nat t e QA Whorl ane vanious typee
2Covalert 3 Loordnate
l, 8,) (3,8) tog A ioni
obelaas Dus Explain vauiouw ypes bond dormathon?
+e+(
(2,6,8) 18e
A onicBond ormby rone
(2,8,7) mobel a d
Na
Na' fu:
Na'C
, a n d lone p a r s ?
bond paYA
Qw What
ane
(ovalent Bond-Fornmby shaung e present b|uw two an
A- B3 Shaned pai elecTOns
AxB R GB A ) called Bond pauYA
oe(Dative Bend ) ovdten bend ta-ehlud LonépalyA,
CoordinaBeBond -Fovm by shaung
A 8 - A)B A-B N+3HX
6P
HONAs HiNn
* NH
uL Explain leuois- Langmy concept ocovoent bond Cuuy hak he leois ule ocket?
os mahion?
2) Explaun wsing uitable examn ples?
the Concept thiaule?
Ay AcC. to
muhual shayng e o m e nitah on
)Bond ormec buo two atoms by to orm covalent bondsto
A D Ac. to lecos elements combine
b e t u e e n two atomA com pl ete heir octet or to achiwe nobel gas flecronu
called covaleny bond pnkoge Complete heY octet and
duplet s
conwnahion
Numoer oelechromd conributed byeach atom or
bharuna cealled covaency o atakm. 2) CCRy
. d- (: u:) -u
+
oeb
H' , 30dtt (:
Duplet imitahono leis ule kt
) oo atoms can haue two o r moye bonds between ) Compounda o hydiogen
in mat concept o Double Cand Tripple Tn
hem
pond i s e s
case
caseo hgdrogen leuou ule in notaplicables
nH tachiet nobel aas ¬.t o Helium and Anu athitre
duplet stad o Eckt.
2:0:+:0 tMa
:N=N:
N +:N:»NEN:
, F Cemore. hanoth
x 6xH NaTe
hemain motiu to osm bond is to odeouaue haenergy o
ouwn hole 2, uwhich willmUuae stability.
) Formaton o ompound in which oxkt u fn omple
While deuTeaamg the enegfe, ocket moy osmayng
9 f , A U , al Jonm covalend bondsbut tha Lomplek
Similaaly, elemend may of maunot cichaie noblega
do not achien octetand are regadad aserdeltcient ordiguonh on.
ARCL
Bel
u Define Tonic bond? one
aton toandt
Ar DondJormd by tranader oeom
bond.
inourahell Ce inououhel 6e inoter shl s called ionic
4e hoto octet e Ahorto octet 2eshovt o och
Due b ran e ons ane productd.
anuona gang*
cenhral elementhas Cahion isofmeel by 0aseand iaceadlad
fosmahiongl (o mpourols n whith ion tonu'tb
u) he fa blwopposikly changed
)
Jike Pa s, SF% t16,
MoYe
ham
e" inouter shell te
i) Nat
Tenic FAa
Coloumbic fA
in oulrS shell ele ehro's tuh'e Fa
(Re moTe hon (Lont8ond)
oct) fonmcuhn
fonte bono
an What a u he condifonfoy
1 2 e i n oulurshel!
IONIZATIÓN ENTHAPY3tshoutbe low
A a not beable
more thanoutt
1.6 uwill
atomhawing Aigh
becaue poasibittd e
boRosee easily h nancd ron i'c bond cann
beconmë less
tstunaen
be forned.
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