Advertisements
Advertisements
प्रश्न
How would you react to the statement that the electronegativity of N on Pauling scale is 3.0 in all the nitrogen compounds?
उत्तर १
Electronegativity of an element is a variable property. It is different in different compounds. Hence, the statement which says that the electronegativity of N on Pauling scale is 3.0 in all nitrogen compounds is incorrect. The electronegativity of N is different in NH3 and NO2.
उत्तर २
On Pauling scale, the electronegativity of nitrogen, (3.0) indicates that it is sufficiently electronegative. But it is not correct to say that the electronegativity of nitrogen in all the compounds is 3. It depends upon its state of hybridisation in a particular compound, greater the percentage of s-character, more will be the electronegativity of the element. Thus, the electronegativity of nitrogen increases in moving from SP3hybridised orbitals to SP hybridised orbitals i.e., as SP3 < SP2 < SP.
APPEARS IN
संबंधित प्रश्न
What is the basic difference between the terms electron gain enthalpy and electronegativity?
Which of the following have no unit?
(i) Electronegativity
(ii) Electron gain enthalpy
(iii) Ionisation enthalpy
(iv) Metallic character
Explain the following:
Electronegativity of elements increase on moving from left to right in the periodic table.
Outermost configuration of the most electronegative elements of the periodic table is ______.
The energy released in joule and MeV in the following nuclear reaction,
\[\ce{^2_1{H} + ^2_1{H} -> ^3_2{He} + ^1_0{n}}\]
(Assume that the masses of \[\ce{^2_1{H}}\], \[\ce{^3_2{He}}\] and neutron (n) respectively are 2.0141, 3.0160 and 1.0087 in amu) is ______ × 10−13 J.
