Back in the school days,we have only the hard copy of the periodic
table though some printing are not even visible but now is the
"Scientific Periodic Table" Application easily accessible on your
palm.
Its features are:
(i) Beautiful Interface
(ii) Metals & Non metals differentiation
(iii) Atomic No of each element
(iv) Group of each Element
(v) and many more
Learning the Elements is now Easy and Fun. To download the app, click on Periodic Table app