Periodic table, again

[burnt veldt]

all ik is 1 nahi hoga

oh yes d bhi nahi hoga

[fossil mountain]

<@&1227988359910260737>

Note for OP

+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.

[burnt veldt]

adding electron to anion is alvays endothermic

so confused betveen b and c

[quasi notch]

C

[burnt veldt]

rong

[quasi notch]

What?

[burnt veldt]

galat

[quasi notch]

Ab energy to dekho lagegi electron nikaalna hai to

Daalna hai tab bhi lagegi 'cause hydride isn't really a stable species

Very reactive

[burnt veldt]

ic

[quasi notch]

Ahmm weird

[burnt veldt]

;-;

[gritty junco]

See I think D

[quasi notch]

D kyun nahi hogam

[burnt veldt]

vould it be B because to remove an electron from sodium, you have to give energy?

[quasi notch]

Yeah

O2- na

Very prevalent

[burnt veldt]

.

[quasi notch]

Octet bhi poora us bichare ka

[quasi notch]

Naah
Don't generalise like that

[burnt veldt]

module me yahi diya hai ;-;

[quasi notch]

I mean.......

Net process exothermic hofa

[burnt veldt]

i think in ncert too let me ceck

[gritty junco]

Ye sab sasti baate yaad mat karo
You always have to look at what species you adding electron to
Mai N+ ko electron dunga to that wouldn't be endothermic

[quasi notch]

The step mentioned here could be endothermic too

[gritty junco]

Oh wait aniob

[quasi notch]

Vahi 🙂

[gritty junco]

Yea sory

[quasi notch]

See O to O2- should be exothermic

O- to O2- vala step could be endothermic

[burnt veldt]

vhy?

[quasi notch]

O is very electronegative

Can bear negative charge

[burnt veldt]

oh right

itll give energy

to achieve stable

[quasi notch]

But negative pe or negative daalna is weird

[quasi notch]

Yeah

[vocal canopy]

Please clear my doubt I know atom releases energy when it gets stable however this ques shatters that

[unreal nimbus]

morning

kya hua yaha

[quasi notch]

No charged species is more stable than a neutral species buddy:)

[vocal canopy]

Chem se maut ka khela

[burnt veldt]

ioc

[vocal canopy]

Hmm ?

[quasi notch]

Real

[quasi notch]

Yeah exactly

[unreal nimbus]

are mai bemari me maut ka khela kar rhi aap yaha

[unreal nimbus]

okk okkkk

[vocal canopy]

I will probably die a random day doing chem and maths

[quasi notch]

Mai chai pee aaun yaar canteen band ho jayegi 😭🙏

Aake dekhta hun ise

[unreal nimbus]

me when phy

[vocal canopy]

If you think that way study from vinay uppal

[quasi notch]

Please don't bua ji

[unreal nimbus]

😭

[burnt veldt]

,rotate

[quasi notch]

The person is not for you

[unreal nimbus]

bhyi

[unreal nimbus]

2 ans saath me

[unreal nimbus]

hn sahi to hai

replusion hoga

[quasi notch]

Huhh
That's...

Idk

@lime cedar ?

Sir 😭🙏

[unreal nimbus]

kya jhol maal hai ye

ans kya diya hai?

[vocal canopy]

Huh why ?

[burnt veldt]

i dont feel like ve can assume this everyvhere because hou do u define "high e-e repulson"

[burnt veldt]

hydrogen vaala optn

[quasi notch]

She's studying for neet and IAT
Not for jee advanced

[vocal canopy]

Time to see a oneshot for periodic table revision

[quasi notch]

First gotta get her basics right

[vocal canopy]

Vinay uppal apne jee mains ke one shot or full length course mai basics bhi karwate hai

[unreal nimbus]

b ok

[quasi notch]

Mai bhi dekh lun kya lmao
Hadn't reviewed this thing for a long while tabhi galti hui shayad

[unreal nimbus]

.oneshot

[twilit sundial]

https://tenor.com/view/simpsons-nelson-haha-gif-8845145

[burnt veldt]

@quasi notch is this correct (ignore the "vould it be B" part)

[vocal canopy]

https://tenor.com/view/uno-uno-reverse-gif-17446620327982597857

[vocal canopy]

Tell this to a fella who is preparing for jee 6 months before jee

[burnt veldt]

.padh

[twilit sundial]

https://tenor.com/view/kota-factory-padai-karlo-gif-22793526

[unreal nimbus]

isme not endothermic bola to it is asking ki exo konsa hai
to exo is it gives out energy
ok?
pehle itna clear kar lete hai

[burnt veldt]

yes

[quasi notch]

I'll get back to you
My brain is not braining rn

[burnt veldt]

haan haan take ur time

[unreal nimbus]

to aage me ik ik karkr option dekhte kya hai

[burnt veldt]

okay

[vocal canopy]

Let's say when we add electron to that anion it gets stable. According to what I studied initially in chem bonding atoms releases energy after getting stable

[unreal nimbus]

1. argon hai
   noble gas
   would never give energy when taking up an electron
   uska octet disturb hoga
   ye hata do
   fine till here?

[burnt veldt]

yea

[vocal canopy]

Haa

[burnt veldt]

all ik is 1 nahi hoga

[unreal nimbus]

b last me karte ok?

[burnt veldt]

oka

[vocal canopy]

Oh hell naw it seems a guy turned on camera in class while in baniyaan 😭

[unreal nimbus]

c me it is sodium to sodium ion with electron
ab ye chiz hum kab possible kar payenge jab hum usko energy denge
kyunki even though uska hai octet after loosing isme itne paas hai electron ki energy need ho jata hai
iski na uhm mai apko energies bhi deti hu kiitni lagri sodium me

[unreal nimbus]

ew disgusting man

[burnt veldt]

💀

[burnt veldt]

so basically idhar IE ka khel hai

[unreal nimbus]

d me we have O- to O2- which is ki hume usme ik electron aur add karna hai
jaha usme alredy ik electron hai
ye kya ho gya second electron gain enthaply
to ye to obv nhi hoga exothermic

[unreal nimbus]

yes exactly

now for the last one

which is b

[burnt veldt]

oka

ye bhi samjha

ye samjha do h ka kyu endo h

[unreal nimbus]

kam hai kafii par isme bhi dena hoga energy

[quasi notch]

How is the affinity positive?

Should negative no?

[burnt veldt]

it is negative

according to

my book

[quasi notch]

Yeah should be

[burnt veldt]

haan

[burnt veldt]

only Be and N and noble gases have +ve ie right

[vocal canopy]

Sir saying he looks smart

[burnt veldt]

vhy are u on dc during class 😠

.padh

[twilit sundial]

https://tenor.com/view/kota-factory-padai-karlo-gif-22793526

[vocal canopy]

Although bro got chieseld jawline

[vocal canopy]

Cause it's a revision class ? I joined only for attendence

[burnt veldt]

oh

fair enuf

[unreal nimbus]

tbh ye exothermic nhi hai

[burnt veldt]

._.

[vocal canopy]

Bua ji periodic table padha do tbh

[unreal nimbus]

maine kabse revision nhi kiya hai 😭 adha foggy hai

organic bolo hn thik hai par ye waale nhi yaad

[burnt veldt]

isme kya dekhu

[unreal nimbus]

hydrogen me jo effect sodium me vahi chiz more amount me hai

[unreal nimbus]

IE value 😭

[burnt veldt]

h

oh

mb

[unreal nimbus]

h2o adding h and oh

[burnt veldt]

handekhi

[unreal nimbus]

omg mai pgl ho gyi hu

😭

[burnt veldt]

._.

peak ioc

[unreal nimbus]

to isme b kyu hai i dont get it

[burnt veldt]

💀

i think i get it

nvm i dont

[vocal canopy]

One more thing to add this is the class of SRG batch

[unreal nimbus]

omg

even more

😭

[unreal nimbus]

thingg is all 4 of these are endothermic process so idk which idiot made this question

lke the values are in 3000 for oxygen

[burnt veldt]

j

[unreal nimbus]

around 400 ish for na

[burnt veldt]

oxygen ke liye toh ye diya hai

[unreal nimbus]

the other 2 u saw

[burnt veldt]

peak nta

[unreal nimbus]

BROO nta

[burnt veldt]

i think you vere supposed to get confused at option 2 during the exam, say "baadme dekhenge", do the other options, then by process of elimination mark 2

[unreal nimbus]

what is wrong

but the ans is none

[vocal canopy]

I think we need to summon sir

[burnt veldt]

varun ji already did

[unreal nimbus]

even the first one needs energy

[burnt veldt]

atleast a vill be endothermic right

and also c

[quasi notch]

Naaah

First one is exothermic

[burnt veldt]

so the confusion is betveen b and d!!!

[unreal nimbus]

statistically none is but ok

[unreal nimbus]

😭 this is from ptable.com

i am not saying on my own

[quasi notch]

Really no?

[quasi notch]

It's not accounting for signs

Values ka idk

It's not accounting for the signs

[unreal nimbus]

yes
none is

[unreal nimbus]

it is

that is the worst part

[quasi notch]

Check pubchem or something

That's more reliable as well ngl

I'll read up on this though

Batata hun fir

[unreal nimbus]

hn mai karti

[quasi notch]

@burnt veldt
You move ahead
I'll see this one and ping you

[burnt veldt]

alright tysm

[unreal nimbus]

says the same thing

[quasi notch]

Sign?

[unreal nimbus]

isme sign nhi hai

[quasi notch]

Ye websites bhi na……

[quasi notch]

Ionisation energy to positive hi hogi thik hain

Electron affinity ka karna

[unreal nimbus]

meri physical heath aachi nhi hai chem too dur ki baat 😭

zumdahl ya atkins check karu?

[quasi notch]

Abeyy yaar take care

[quasi notch]

I will don’t worry

Will ping you guys in a bit

[unreal nimbus]

ok okk thnkss

[unreal nimbus]

same thoda merko bhi jana hai

[quasi notch]

Hmm hmm kar dunga

Will ping both you and jeepaglu

[burnt veldt]

ek

baar

[unreal nimbus]

ek baar

[burnt veldt]

ye bhi samjha dena

[unreal nimbus]

do baar

[quasi notch]

Dekho

O se O- jaana is feasible

Kyun?

O is electronegative

[burnt veldt]

haan

[quasi notch]

But ab already negatively charged chiz pe or negative charge daalna

That’s highly unfavourable until you have something around

Like counter ion and all

[burnt veldt]

makes sense

[quasi notch]

Kisi chiz se react karke basically vo energy release nahi karwa sakta taaki overall exothermic ho jaaye

Yahi chiz agar solution me hoti to O se O2- would be exothermic

Gas phase me hai isiliye endothermic hai

[burnt veldt]

ye vaala part ek baar aur

[quasi notch]

Ab Mai tumhara original question khule dimag se dekhta hun

[quasi notch]

Like socho agar O- se O2- me energy lagti hai bohot jyada
Agar solvation energy ke naam pe next step me bohot saari energy release ho jaaye

To overall process exothermic ho jayega na?

[burnt veldt]

solvation energy?

[quasi notch]

H2O me agar koi ion hota hai

To water ke molecules use gher lete hain na

Ya kisi bhi solvent me hota hai basically

Agar polar solvent hai to ions gher lenge na use

That electrostatic potential energy generated due to that charge separation

[burnt veldt]

haan

[quasi notch]

That’s very negative

(Kitna negative depends upon the ion)

[burnt veldt]

ic

makes sense

[quasi notch]

.

[burnt veldt]

all the best 🙏

[vocal canopy]

@unreal nimbus your glasses are of negative power or positive ?

[unreal nimbus]

negative

[vocal canopy]

Accha you can relate then. Do you keep a printed periodic table on wall ? If yes are you able to see the electron config written on it clearly ? 😭

I can't

[unreal nimbus]

nah i cant see it 😭

[vocal canopy]

I have spent an hour finding a perfect periodic table pdf which I can print on A4 paper

And still see electron config written on it

[unreal nimbus]

us

[vocal canopy]

So what did you do in end ?

If I don't find a solution in a week

I will just go and get laser surgery

[unreal nimbus]

i just keep one website open

the ptable wnt ever be visible like that to me

[vocal canopy]

I don't want to use my laptop everytime so its hectic for me

[unreal nimbus]

same par option nhi hai

[quasi notch]

That's something you did by elimination

[quasi notch]

How do you say the H to hydride thing is exothermic

[quasi notch]

I mean we aren't technically talking about bond breaking and forming
Aise naked atom ko electrons dena and lena
Isme usually energy is required

For Oxygen to oxygen (1-)

Being exothermic is understandable

Na to Na+ being endo is understandable

[quasi notch]

('cause it's in gas phase; no solvation)

Argon vala option is also understandable as you explained

But hydride vala thing......

I'm not really getting how is that exothermic

[burnt veldt]

vait, o- + 1e = o-- is an exception for being endothermic?

[unreal nimbus]

this

[burnt veldt]

isnt it all anions + 1e = endothermic

[burnt veldt]

,

[unreal nimbus]

hn lekin oxygen ka vaha octet ho jata haina

[quasi notch]

Are you're giving it to an electronegative element

[unreal nimbus]

🤡 NTA

[burnt veldt]

ok sir makes sense

[quasi notch]

But yahan to it's easy explanation isn't it 😭

Why mug here

[quasi notch]

As far as I can see, there are already two lone pairs

2 more electrons

Basically what I wanted to say was too much interelectronic repulsions

Considering it's a second period atom

[unreal nimbus]

dont get me wrong i love chemistry but sometimes the reason for my fried brain is chemistry

[lime cedar]

Case in point

[unreal nimbus]

stop studying chemistry lord

[quasi notch]

That's something I told him above

Just 'cause this is in gas phase

[burnt veldt]

😔

[quasi notch]

So it seems like too much of energy is required

[unreal nimbus]

keep studying chemistry

[quasi notch]

But when you have a counter ion

You have a solvent

Then it compensates for it

[burnt veldt]

yea its pretty interesting

its like that one game vhere you say 'this game sucks' then continue playing it

cuz the game itself is fun

that ONE thing is frustrating

[quasi notch]

See it's all logical
Just that time lagta hai
That solvation and lattice thing chemical bonding me aa jaati hai generally

If not there to 12th me solutions, electro somewhere at least

[burnt veldt]

ic

[burnt veldt]

so for rn, just solve using elim?

and ncert

[unreal nimbus]

yes

[slow otter]

iteachchem

Transcription requested by Abhi

या ब्रो, MCQ है और क्या करना है, वही तो करना है.

[slow otter]

iteachchem

Transcription requested by Abhi

देखो अगर bond form हो रहा है तो exothermic है, ठीक है, so A, B, or D में से you have to pick, C में you are breaking a bond technically, so that is obviously endothermic, A तो argon है, it does not want an electron whatever you do, so you got to give it a lot of energy to accept that, Oxygen का भी second वाला endothermic step होता है, that's an exception, मग कर लो NCRT में है, must be B,

[slow otter]

iteachchem

Transcription requested by Abhi

And also, if you want to know PQ, I told you, everything that forms bonds must be exothermic.

[slow otter]

iteachchem

Transcription requested by Abhi

So, elimination says like you give all of those are exceptions to this idea. He you know, forming bondage is atomic.

[slow otter]

iteachchem

Transcription requested by Abhi

अरे NCRT पढ़ ले भाई.

[quasi notch]

Yeah that's something that also could do the same
Like enhance the formation of it

[slow otter]

iteachchem

Transcription requested by Abhi

इतना सोचो मत भाई, नेचर में understand करना मुश्किल है, I have told you a simple idea, bond forming gives off energy, bond breaking requires energy, think of this like a bond, that's what it is right, see what is a bond, दो electron, electron का यहां से वहाँ जाना या share होना, in this case, one half of that is happening,

[slow otter]

iteachchem

Transcription requested by Abhi

Can you please read NCRD?

[slow otter]

iteachchem

Transcription requested by Abhi

This is one of those things that you just have to mug. If you want to know why, you're going to have to read a lot of books.

[slow otter]

iteachchem

Transcription requested by Abhi

But this is also another thing that's tested a lot in JEE and NEET, because mug vomit works in all these exams, like that thing, what is it called? Inert pair effect, zabarasti puchenge bhai toh mug karo.

[slow otter]

iteachchem

Transcription requested by Abhi

Yeah, the second step is always endothermic.

[slow otter]

iteachchem

Transcription requested by Abhi

But oxygen case mein bahut zyada endothermic hai because of other **** , forget it like I don't want to get into it.

[unreal nimbus]

ABHI BRO

[lime cedar]

Abhi

[unreal nimbus]

😭

[lime cedar]

Stop

Or I'm gonna ban you

[unreal nimbus]

stop

[slow otter]

iteachchem

Transcription requested by Abhi

What you are saying is right but the confusion arises कि अगर endothermic है then why does the O2- ion get formed in the first place वो ये बच्चे को मैं यहां बोलेंगे तो he will get confused and stop studying chemistry But we will learn it by 12th which is the concept of lattice energy because that stabilizes the compound Simple terms right, that's it

[unreal nimbus]

..

[slow otter]

iteachchem

Transcription requested by Abhi

No, you don't need a solvent, no. You have solid compounds that get formed, so lattice energy is the main thing.

[slow otter]

iteachchem

Transcription requested by Abhi

But let's stay on point, एक चीज में एक चीज का answer देते हैं, वो हमने दे दे और इसको बन चाहते हैं, let's not spend anymore time on this.

[burnt veldt]

yes sir that makes sense

thanks alot everyone

[slow otter]

iteachchem

Transcription requested by Abhi

लॉजिक भी तो बताया, एलेमनेशन है और हाइड्राइट तो सिंपल है, all things where bonds form are exothermic and exceptions, all of the other three things are exceptions to the rule and generally second affinity, electron affinity will always be endothermic, वो उसने बताया क्यों?

[lime cedar]

Done.

[burnt veldt]

ill close this nou

[lime cedar]

He's gone

[vocal canopy]

Just saw the msgs

Sorry sir

I was too busy reading the transcripts

Agli baar ping kar dijiye ga sir instant pta chal jaayega mereko

[burnt veldt]

+solved @lime cedar @unreal nimbus @quasi notch