In the long form of the periodic table, ________
group elements can release maximum amount of
energy by the addition of electron into is valence
shell.
Electrons present in the outermost shell of the atom of an element are called valence electrons.
3Li is an s-block element and its electronic configuration is 1s22s1. Since it has one...
The element having valence shell electronic configuration 3s2 3p1 must be placed in the p - block of the periodic table as its last electron enters in p-subshell (3p).