The element with lowest ionisation potential is
Na
K
Rb
Cs
Identify the correct electronic configuration of Cr (2=24)
1s2, 2s2, 2p6, 3s2, 3p6, 3d7, 4s1
1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4s2
1S2, 2s2, 2P6, S2, 3P6, 3d7, 4s2
1s2, 2s2, 2p6, 3s2, 3p6, 3d6, 4s2
The ionisation energy will be maximum for
Be
Li
B
H
Variable oxidation state and degenerated orbital shows
s-block element
p-block element
d- block element
All of these
The element with atomic number 36 belongs to _______ block in the periodic table.
p
s
f
d
Which of the following have highest melting point
p-block elements
s-block elements
d- block elements
none of these
______ is defined as the tendency of an atom in a molecule to attract the shared pair of electrons towards itself.
Electropositivity
Electronegativity
Electron gain enthalpy
Electron affinity
Electron affinity is maximum for
Cl
F
Br
I
The number of elements present in fifth period of periodic table is
10
8
32
18
Molybdenum metal is related to which block?
s- block
p-block
d - block
