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प्रश्न
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
विकल्प
Both assertion and reason are true and reason is correct explanation for the assertion
Both assertion and reason are true but the reason is not the correct explanation for the assertion
Assertion is true and the reason is false
Both assertion and the reason are false
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उत्तर
Assertion is true and the reason is false
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संबंधित प्रश्न
Which of the following elements will have the highest electronegativity?
In the third period the first ionization potential is of the order.
Which one of the following arrangements represent the correct order of least negative to most negative electron gain enthalpy
The electronic configuration of the atom having maximum difference in first and second ionisation energies is
Which one of the following is true about metallic character when we move from left to right in a period and top to bottom in a group?
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"
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.
Why the first ionisation enthalpy of sodium is lower than that of magnesium while its second ionisation enthalpy is higher than that of magnesium?
By using Pauling's method calculate the ionic radii of K+ and Cl− ions in the potassium chloride crystal. Given that `"d"_("K"^+) - "Cl"^-` = 3.14 Å
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.
