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प्रश्न
Which one of the following is the least electronegative element?
विकल्प
Bromine
Chlorine
Iodine
Hydrogen
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उत्तर
Hydrogen
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संबंधित प्रश्न
In the third period the first ionization potential is of the order.
The element with positive electron gain enthalpy is
In a given shell the order of screening effect is
Which of the following orders of ionic radii is correct?
Is the definition given below for ionisation enthalpy is correct?
"Ionisation enthalpy is defined as the energy required to remove the most loosely bound electron from the valence shell of an atom"
Explain the Pauling method for the determination of ionic radius.
Explain the periodic trend of ionisation potential.
Why the first ionisation enthalpy of sodium is lower than that of magnesium while its second ionisation enthalpy is higher than that of magnesium?
Explain the following, give an appropriate reason.
The formation of \[\ce{F^-_{(g)}}\] from \[\ce{F_{(g)}}\] is exothermic while that of \[\ce{O^2-_{(g)}}\] from \[\ce{O_{(g)}}\] is endothermic.
What is the screening effect?
