Advertisements
Advertisements
प्रश्न
Explain the following:
Electronegativity of elements increase on moving from left to right in the periodic table.
उत्तर
The electronegativity generally increases on moving across a period from left to right (e.g., from \[\ce{Li}\] to \[\ce{F}\] in the second period). This is due to decrease in atomic size and increase in effective nuclear charge. As a result of increase in effective nuclear charge, the attraction for the outer electron and the nucleus increases in a period and therefore, electronegativity also increases.
APPEARS IN
संबंधित प्रश्न
What is the basic difference between the terms electron gain enthalpy and electronegativity?
How would you react to the statement that the electronegativity of N on Pauling scale is 3.0 in all the nitrogen compounds?
Which of the following have no unit?
(i) Electronegativity
(ii) Electron gain enthalpy
(iii) Ionisation enthalpy
(iv) Metallic character
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.
