Trends Electronegativity - p Block Elements Video Lecture - Class 11

announcements this video on D block
elements or five is watched by exam feel
your calm no more you from example let's
talk about electronegativity so what is
electronegativity so electronegativity
is nothing but a tendency to pull the
shared electron it's just a pull right
it just pull not the exact body called
consuming the electron just up to
Lashley people talk about it literally
to be here right so when we see that
fluorine is more electronegative then
later goes chlorine because chlorine has
more tendency to just pull just pull not
the not I'm not not on keyboard and the
fluorine exactly take out the electron
from some and key be themselves just a
pull right there is a little activity so
if you have you want to understand Allah
created indeed a little piece was the
atoms are aware we discussed about
electronegative so as I am assuming that
you know this definitions you just I am
giving the definition now that the
electronegativity is nothing but a
tendency to put a shared pair of
electrons towards itself and this also
if you see it depends on the size of
atom and the electron hunger mess size
of a dime I mean say size and charge
actually I can say item size in charge
it is a capability and the hunger gets
desired
this is desired this is all right based
on capability so similar to electron
gain in half it has a similar train if
you go from here to here so you compare
boron and let's suppose oxygen oxygen
has more hungriness for electron because
the moment you a oxygen let's compare
borer and fluorine fluorine has more
handedness per electron but the moment
forget one electron will become stable
so hang on s is more cooling also the
size is less for falling and charge is
more for 4h if you see all these three
parameters compare boron and chlorine
fluorine is pretty good so if you
compare Bohr and chlorine so fluorine
has almost four legged Li and golden and
almost correct similarly if you go down
the group if you see Bohr
and let's suppose we compared indium so
if you see in compared to size boron has
better in size hunger less both are same
because both needs one electron and
charge charge is done talking about the
effective charge so the shielding effect
by the orbitals
this has more charged effective charge
so in both the case but on stands Boren
will have more electronegative as
compared to uni this is general trend
act so you go from here to here the
electron energy increase because the
hungin is increased if you go up to
again the electron any increase because
the hungin is increased because a
effective charge right so in if you go
in a group the hunger this is same
actually but the capability increase
right now if you see the neon and argon
has almost zero electronegative vty
because they are stable they're happy in
life and they are stable they don't want
extra electron in there like to make
their life disaster so they're happy and
they have zero little and this strains
breaks in a universal you see the trend
is that we go down the groom it should
decrease but if you see here it is
increasing similarly if you see it has
to decrease but they in here after you
see it has increased so if you see these
guys are then breaker here he also will
give the same logic see if you see here
in gallium we have three D orbitals and
we have poor shielding gallium gallium
we have three D orbitals in portioning
so we have more effective charge right
so more effective charge means more
capability see if we go down this group
The Hunger needs to get electron is same
right but same because if you see in all
these nitrogen families they all need
three electrons to be stable here they
are - Willie talk to be stable here they
only do one electron to be sale in here
they all in four electrons to be state
so that is Hangul is is same but if you
go if you compare everyone even gallium
norm gallium has got 3d orbitals and has
poor shielding so effective nuclear
charge on gallium is more as compared to
L when you the same logic which we've
used for size since the effective
nuclear charge for gallium is more the
size also is if you compare now size
let's suppose if you change the color so
let's compare ammonium and gallium is
this India is smaller right so if you
compare Emily emit gallium based on size
this guys advantage because gallium is
less in size 3d shielding effect
effective nuclear charge gallium is
advantage gallium is more ability to
charge so in both case gell evils better
than Avenue so gallium is more
electronegative then same thing with
germanium and silicon also alright so if
you see anything in chemistry has a
logic behind it right so if you see the
size is decreasing there has to be a
logic if you see if you electronic we
have some trend and there is some
exception there has to be logic for the
exception of so in this case also we
have seen for ionization that we
electron beam lithography
electronegativity in size we saw there
the logic for the video and hope you
understand the trends of the
electronegativity ionization have the
atomic size in the key block element
thank you
visit exam viacom to watch free it
should be should reduce try 3 online
tests get the best quality study
materials study from the best tutors and
mentors and mash book thank sense again