TY  - BOOK
AU  - Padumadasa , Chayanika
TI  - Introduction to periodic table unit II
SN  - 9789552313530
U1  - 546.8 
PY  - 2012///
CY  - Nawala
PB  - Open University of Sri Lanka
KW  - Chemical Elements
KW  - Periodic Law
KW  - Periodic Table of The Elements
KW  - Scientists
KW  - Chemistry, Physical and Theoretical
ER  -