The element which has greatest difference between first and second ionization energy is _________
Na
Mg
Si
P
Amongst the following elements, whose electronic configuration are given below, the one having the highest ionisation energy is ____________
[Ar] 3d104s24p3
[Ne] 3s23p2
[Ne] 3s23p3
[Ne] 3s23p1
The atomic number of the next halogen is
104
167
85
117
Of the following pairs, the one containing a metalloid element is
F&Cl
Ca &Mg
As & Sb
Na & K
The Size of I, I+ and I- follow the order
I+> I-> I
I-> I+ >I
I-> I>I+
I+>I>I-
With the help of electro negativity table, it is possible to predict the nature of bond formed between two
ions
molecules
atoms
radicals
In halogens _________ increases from fluorine to Iodine.
Electro negativity
Oxidising power
First ionization enthalpy
Bond length
Similar chemical properties of Zr and Hf may be attributed to
Similar atomic radii
Inert pair effect
Identical ionization energies
similar electronic configuration
Maximum number of unpaired electrons are present in
Co
Ni
Cr
Fe
The physical properties of vanadium are more closely related to that of
Titanium
Tungsten
Niobium
Nobelium
