000 00638nam a2200181Ia 4500
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040 _cPK-IsLIS
082 _a540
_bG3411
100 _aGhaffar,Abdul
245 3 _aAn ideal approach to chemistry
_c/ Abdul Ghaffar
260 _bMaktaba Zakariya,
_aLahore :
300 _a239 p.
650 _aChemistry
942 _cBK
505 0 _a1. Periodic classification of elements and periodicty 2. S-block elements 3. Group 3 a and group 4a elements 4. Group 5a and group 6a elements 5. The halogens and the noble gases 6. Transition elements