The Size of I, I+ and I- follow the order
I+> I-> I
I-> I+ >I
I-> I>I+
I+>I>I-
The element Rutherfordium is a member of
Transition element
Inert gases
Alkali metals
Actinides
In a given period, the alkali metals have _________
Lowest ionization energy
Smallest atomic size
Highest electron affinity
Lowest density
The element forming an acidic oxide is ___________
C
Ca
Zn
Mg
Second ionisation potential of an element is invariably higher than its first ionization potential because ________
The size of the cation is smaller than its atom.
It is difficult to remove electron from cation
Effective nuclear charge is more for cation
All
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
In Mendeleev's periodic table elements are arranged in the increasing order of
Atomic number
Atomic weight
Atomic volume
Density
The fourth period of the p- block elements contains
8 elements
6 elements
18 elements
10 elements
Out of the following the pair which is isoelectronic and iso-structural is
SO3,NO3-
ClO3-, CO2-3
CO22-, SO3
NO-3, CO2-3
Unbinilium is the IUPAC name of the element with atomic number _____________
120
121
110
102