Identify the correct electronic configuration of Cr (Z=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
Electronic configuration of an element 'x' having atomic number 24 is
[Ne]2p53s1
[Ar] 3d64s2
[Ar]3d44s2
[Ar]3d54s1
Name the element having atomic number 105.
Kurchatovium
Dubnium
Nobelium
Holmium
Variable oxidation state and degenerated orbital shows
S-block element
P-block element
d- block element
All of these
The ionisation energy will be maximum for
Be
Li
B
H
Which of the following has the highest electron affinity?
F-
O-
O
Na
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
Molybdenum metal is related to which block?
S- block
P-block
d - block
_________ has highest electronegativity.
F
Br
Cl
I