Dear Student, s-block elements are the elements in which the last electron enters into s-subshell. Group 1 and group 2 elements i.e. alkali metals and alkaline earth metals are s-block elements as their valence shell electronic configuration is ns1 and ns2 respectively where n is the shell number. Regards,
The elements which lie between s and p block elements in the long form periodic table are called as:
Which period in the periodic table has both 's' and 'p' block elements?