Ques.20
Dear student
Period, Group and Block of the following elements:
Ca(20) : 1s22s22p63s23p64s2
This element has 2 electrons in valence shell, it lies in Group 2
Calcium lies in Fourth period
It is a s-block.
Co(27): [Ar]3d54s2
This element lies in Group 27
It lies in Fourth period.
It is a d-block element
P(15): 1s22s22p63s23p3
This elements lies in Group 15
It lies in Third period.
It is a p block element.
Regards
Period, Group and Block of the following elements:
Ca(20) : 1s22s22p63s23p64s2
This element has 2 electrons in valence shell, it lies in Group 2
Calcium lies in Fourth period
It is a s-block.
Co(27): [Ar]3d54s2
This element lies in Group 27
It lies in Fourth period.
It is a d-block element
P(15): 1s22s22p63s23p3
This elements lies in Group 15
It lies in Third period.
It is a p block element.
Regards