Atomic radii increases on moving down a group due to
increase in nuclear charge
Additive electrons added to the same electronic level
introduction of extra energy shells
additive electrons in outermost shell.
The electron affinity of an atom
is directly proportional to its size
is inversely proportional to its size
is independent of its size
none of these
Noble gases have _____electron affinity.
High
Low
Zero
Very low
On moving down the group, the radius of an ion
Decreases
Increases
No change
None of these
Among the following which has higher electron affinity value
Fluorine
Chlorine
Bromine
Iodine
Which among the following has the highest ionization potential?
F
C
Br
Ne
The scale which is based on an empirical relation between the energy of a bond and the electro negativities of bonded atoms is
Pauling scale
Mulliken’s scale
Sanderson’s scale
Alfred and Rochow’s scale
The order of ionization energy
s < p < d < f
s > p > d > f
s > d > p > f
s < d < p < f
The bond length of Cl2 molecule is
0.74
1.44
1.98
2.28
The bond distance of H-H bond is
1.44 Å
1.98 Å
0.74 Å
2.28 Å