The electron affinity values (in kg mol–1) of three halogens X, Y and Z are respectively –349, –333 and –325. Then X, Y and Z respectively, are
Cl2, F2 and Br2
The electron affinity (in kJ/mol),
Fluorine = 332.6
Chlorine = 348.5
Bromine = 324.7
Iodine = 295.5
Chlorine has the highest electron affinity value.
So, the correct order of electron affinity will be
Cl2 > F2 > Br2
The least stable ion among the following is
Ist and IInd IE of Mg are 7.646 and 15.035 eV respectively. The amount of energy needed to convert all the atoms of magnesium into Mg2+ ions present in 12 mg of magnesium vapours is [Given, 1 eV = 96.5 kJ mol–1]
Which of the following is the most electropositive element?
Which of the following sequence correctly represents the decreasing acidic nature of oxides?
Which of the following pairs of species have nearly same size?
The set representing the correct order of ionic radius is
The pair of elements having approximately equal ionisation potential is
Which is not the correct order for the stated property?
The correct order of ionisation energy of C, N, O, F is
Which of the following has the highest second ionisation energy?