The Total solution for NCERT class 6-12
Element
General outer electronic configuration
s–block
ns1–2, where n = 2 – 7
p–block
ns2np1–6, where n = 2 – 6
d–block
(n–1) d1–10 ns0–2, where n = 4 – 7
f–block
(n–2)f1–14(n–1)d0–10ns2, where n = 6 – 7