Chemistry and Physics have a number of common topics. It is bound to be so because often professors like Mulliken and Pauling had been simultaneously professors of Physics and Chemistry. X-ray diffraction and X-ray spectrometry are in the Physics departments in some places and in Chemistry in other places. This is true of many other branches of spectroscopy.
However, while teaching physics in XII class, it is the final chapters which are dealing with dual nature of radiation and matter (ch. 12) going to atom models and losers (ch. 13), nuclear physics (ch. 14), semiconductors, electronics (ch. 15) and communications (ch. 16), in N.C.E.R.T books.
In Chemistry, unit 3 of class XI starts with atomic structure, unit 4 with periodic table, electronic configuration, s, p, d, f blocks included. The first chapter of class XII book starts with a brief introduction to Bohr atom model, the de Broglie waves; a
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