Advertisements
Advertisements
प्रश्न
Define electronegativity.
उत्तर
Electronegativity is defined as the relative tendency of an element present in a covalently bonded molecule, to attract the shared pair of electrons towards itself.
APPEARS IN
संबंधित प्रश्न
The group of elements in which the differentiating electron enters the anti penultimate shell of atoms are called ________.
Which one of the following arrangements represent the correct order of least negative to most negative electron gain enthalpy
Which one of the following is the least electronegative element?
Assertion: Helium has the highest value of ionisation energy among all the elements known
Reason: Helium has the highest value of electron affinity among all the elements known
The electronic configuration of the atom having maximum difference in first and second ionisation energies is
The First ionisation potential of Na, Mg and Si are 496, 737 and 786 kJ mol-1 respectively. The ionisation potential of Al will be closer to
What are isoelectronic ions? Give examples.
Magnesium loses electrons successively to form Mg+, Mg2+ and Mg3+ ions. Which step will have the highest ionisation energy and why?
In what period and group will an element with Z = 118 will be present?
Explain the following, give an appropriate reason.
The electron affinity values of Be and Mg are almost zero and those of N (0.02 eV) and P (0.80 eV) are very low.
