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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
APPEARS IN
संबंधित प्रश्न
In the third period the first ionization potential is of the order.
Identify the wrong statement.
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
Which of the following is the second most electronegative element?
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?
State the trends in the variation of electronegativity in groups and periods.
