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.
Pick the correct statement
Carbon having more nuclear charge than boron
The size of carbon atom is larger than boron
Carbon forms electron deficient compounds
Carbon forms ionic compounds
Comparing the ionisation energy of fluorine with carbon, fluorine has
higher ionisation energy
lower ionisation energy
same ionisation energy
none of these
Effective nuclear charge (Z*) can be calculated using the formula
Z* = Z-S
Z* = Z + S
Z* = S – Z
Z = Z* – S
Electronegativity of an atom is
Directly proportional to its nuclear charge
directly proportional to its atomic radii
inversely proportional to its nuclear charge
independent
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
Across the period, electron affinity
decreases
increases
decrease and then increases
increase and then decreases
Among the following which has higher electron affinity value
Fluorine
Chlorine
Bromine
Iodine
Ionization energy is
directly proportional to size of atom
directly proportional to nuclear charge
increase with less stable electronic configuration
