Electronic configuration of an element 'x' having atomic number 24 is
[Ne]2p53s1
[Ar] 3d64s2
[Ar]3d44s2
[Ar]3d54s1
________ is the least electronegative element.
F
Fr
Cs
Cl
Molybdenum metal is related to which block?
s- block
p-block
d - block
none of these
Which is the property of non-metal?
Electronegativity
Basic nature of oxide
Reducing property
Low ionisation potential
The element with atomic number 36 belongs to _______ block in the periodic table.
p
s
f
d
The element with lowest ionisation potential is
Na
K
Rb
The number of elements present in fifth period of periodic table is
10
8
32
18
The diagonal partner of element B is.
Li
Al
Si
Mg
Electron affinity is maximum for
Br
I
The ionisation energy will be maximum for
Be
B
H