The Size of I, I+ and I- follow the order __________.
I+> I-> I
I-> I+ >I
I-> I>I+
I+>I>I-
Which of the following contains maximum number of unpaired electrons ?
Co
Ni
Cr
Fe
The physical properties of vanadium are more closely related to that of
Titanium
Tungsten
Niobium
Nobelium
Fluorine has low electron affinity than chlorine because of _________.
Bigger radius of fluorine,less density
Smaller radius of chlorine, high density
Smaller radius of fluorine, high density
Smaller radius of chlorine, less density
On the basis of group valencies, the formula of the compound formed between tin and fluorine is
SnF3
SnF4
SnF6
SnF
On descending a group in the periodic table
Metallic character of elements increases
Electro negativity of elements increases
Ionization energy of elements increases
Size of elements decreases
Noble gases are group of elements which exhibit very
Minimum electronegativity
Low chemical activity
High chemical activity
High diamagnetic properties
The effective nuclear charge of an atom depends upon
atomic number and nuclear charge
shielding effect
atomic number and shielding effect
shielding effect and nuclear charge
On Pauling electronegativity scale, the element nearest to fluorine is?
N
O
Ne
CI
The pair in which ionisation energy of the first species is less than that of the second is _______
N,P
N,N-
Be+, Be
S,P
