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प्रश्न
The element with positive electron gain enthalpy is
पर्याय
Hydrogen
Sodium
Argon
Fluorine
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उत्तर
Argon
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संबंधित प्रश्न
Identify the wrong statement.
The correct order of decreasing electronegativity values among the elements X, Y, Z and A with atomic numbers 4, 8, 7 and 12 respectively
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
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Which of the following is the second most electronegative element?
How would you explain the fact that the second ionisation potential is always higher than the first ionisation potential?
Energy of an electron in the ground state of the hydrogen atom is −2.18 × 10−18 J. Calculate the ionisation enthalpy of atomic hydrogen in terms of kJ mol−1.
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.
Briefly give the basis for Pauling's scale of electronegativity.
State the trends in the variation of electronegativity in groups and periods.
