hydrogen has three isotopes: Protium ( 1 proton) , Deuterium ( 1 proton and 1 neutron), and tritium (1 proton and 2 neutrons).


which of these isotopes is most electronegative and why?

3 years ago


Answers : (2)


Dear Janani,

Protium would have the highest electronegativity value followed by Deutrium & then finally tritium ..

The electronegativity decreases in the order..



This is because electronegativity is the tendency to attract the shared pair of electrons towards a particular atom..Now for Protium(1H1) it has one proton(+ve charged) & so it could attract the electrons effectively towards itself but in deutrium there is an added neutral charge in the form of a neutron which increases the size thus reduces the electronegativity tendency of the deutrium atom & similarly for tritium..!!


If you still have any doubts then please ask them all so as to clarify them..!!

If you loved the answer then please do not forget to approve it by clicking on "Yes" below..!!

3 years ago

as we increase the no. of electrons in s orbital, we have a strong shielding from s orbital..... so net effective charge on the adjacent atom's electrons decreses....hence its electronegativity decreses.....

Thus, Protium has largest electro-vetivity...... Smile

3 years ago

Post Your Answer

More Questions On Organic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
1)write bond line formula for tertiary butyl cyclo pentane. 2)convert benzene---P-Nitro Bromo Benzene
1. Bond Line Structure ofbutyl cyclo pentane. 2. Benzene to pera-nitro bromobenzene
Pankaj 4 months ago
Sir please help me balance this equation- Cr(oh)3+IO3^-1-------->I-+CrO4^2-(in basic medium) by ion electron method. Sir it is written in my book to first balance all the atoms other that o...
If you will follow the steps you will get the answer. General Steps Step 1:Try to balance the atoms in the equation by inspection, that is, by the standard technique for balancing non-redox...
Suraj Prasad 3 months ago
how to do this ques? please help
Hello Student Plese write the specific question so that we can provide you the corrct answer. Still, if you want to solve any question of chemistry, you must undergo the related chapter and...
Gaurav 27 days ago
sorry it didnt got attached
Kaustubh Nayyar 22 days ago
bile juice responcible for emulsification of fats is stored in
Bile or gall is a bitter-tasting, dark green to yellowish brown fluid, produced by the liver of most vertebrates, that aids the digestion of lipids in the small intestine. In humans, bile is...
Sunil Kumar FP one month ago
Hello Student Bile juice is one of the number of ther digesive juices prent in human digestive system. Bile juice is responcible for emulsification of the fats of the foold. Bille juice is...
Gaurav one month ago
Is ethylene diamine a strong or weak field ligand ? Why is the shape of [Ni(CN) 4 ] 2- and [Ni(CO 4 )] different , although both CN - a nd (CO) are strong field ligands ?
1,ethylene diamine a strong field ligand as it has two group which is attached to the central atom. it form a "C" clamp looking structureSee the structure of EDTA(ethylene diamine)...
Sunil Kumar FP 2 months ago
ni z= 28 3d8 4s2 oxidation state 0 CO is neutral ligand and strong field ligand therefore e- pairing occurs and final e- config after pairing is 3d10 4s0 hence 4s and 4p orbitals will be...
Sunil Kumar FP 2 months ago
Where does the 4s 2 electron go?
Krishnendu Ronaldo 2 months ago
View all Questions »