Classification of Elements on the Basis of Electronic Configurations
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313029 There are 10 neutrons in the nucleus of the element \(_{\rm{z}}\,{{\rm{M}}^{{\rm{19}}}}{\rm{.}}\) It belongs to -

1 f-block
2 s-block
3 d-block
4 None of these