Molybdenum metal is related to which block?
s- block
p-block
d - block
none of these
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
The element with lowest ionisation potential is
Na
K
Rb
Cs
The number of elements present in fifth period of periodic table is
10
8
32
18
Name the element having atomic number 105.
Kurchatovium
Dubnium
Nobelium
Holmium
Which one of the following is not a chalcogen?
S
Se
O
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
Cl
The diagonal partner of element B is.
Al
Si
Mg
