Solution:
Highest “n” value = period
Subshell in which last electron enters = block
Group number = 10 + ns + np e¯s.
An element has electronic configuration 1s22s22p63s23p4 . Predict their period, group and block
Highest “n” value = period
Subshell in which last electron enters = block
Group number = 10 + ns + np e¯s.