S block elements

S block elements are known as alkaline metal.
These are highly electroporative.
They can easily donate election to other elements.
These are basically metals .
S block elements divided in two groups
S1 and S2 group
S1 group elements
H
Li
Na
K
Rb
Cs
Fe
There electronic configuration is ns1
Here n refer to principle quantum no.
General trend of these elements
1 Metallic character
When we go top to bottom in group metallic character increase because of increase in size due to which easily donate election.
2 Ionisation enthalpy
Top to bottom Ionisation enthalpy decrease because nuclear force of attraction decrease .
3 anamolous behaviour of lithium
A) small size
B) low metallic property
C)presence of diagonal relationship

S2 group elements
These are known as alkaline earth metal

Be
Mg
Cr
Sc
Ba
P
Rb
1Metallic property
Top to bottom increase due to increase size.

2Ionisation entbenth
Decrease due to increase size
Electronic configuration is ns2
N refer to principle quantum no
These elements s block completed field

Anamolous behaviour of Mg
Small size
Diagonal relationship show