Electron affinity depends upon ….…………
a) nuclear charge
b) atomic radius
c) shielding effect
d) all of these
Atoms with smaller atomic radii have …….. shielding effect.
a) greater
b) poor
c) no shielding effect
d) none of these
Electron affinity………….in groups from top to bottom.
a) increases
b) decreases
c) remains same
d) none of these
Explanation:Electron affinity increases upward across periods of a periodic table for the groups and from left to right, because the electrons added to the energy levels get closer to the nucleus, making the nucleus and its electrons more attractive.
Electron affinity...in periods from left to right.
a) increases
b) decreases
c) remains same
d) none of these
Explanation:This is because atomic number increases down a group, and thus there is an increased distance between the valence electrons and nucleus, or a greater atomic radius.
As the number of shells increase shielding effect will ………..
a) increase
b) decrease
c) remains same
d) none of these
Removal of the electrons is ………from the outermost shells.
a) difficult
b) easy
c) impossible
d) a & c both
