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144898_7InorganicChemistry.pdf I G. C. E. (Advanced Level)
CHEMISTRY
Grade 12
Unit 6: Chemistry of s, p and d Block ElementsDepartment of Science
Faculty of Science and Technology
National Institute of Education
www.nie.lk IIChemistry
Resource Book
Grade 12
© National Institute of Education
First Print ± 2018
Department of Science
Faculty of Science and Technology
National Institute of Education
Sri Lanka
Published by: Press
National Institute of EducationMaharagama
Sri Lanka
IIIMessage from the Director General
The National Institute of Education takes opportune steps from time to time for the development of quality in education. Preparation of supplementary resource books for respective subjects is one such initiative. Supplementary resource books have been composed by a team of curriculum developers of the National Institute of Education, subject experts from the national universities and experienced teachers from the school system. Because these resource books have been written so that they are in line with the G. C. E. (A/L) new syllabus implemented in 2017, students can broaden their understanding of the subject matter by referring these books while teachers can refer them in order to plan more effective learning teaching activities.I wish to express my sincere gratitude to the staff members of the National Institute of
Education and external subject experts who made their academic contribution to make this material available to you.Dr. (Mrs.) T. A. R. J. Gunasekara
Director General
National Institute of Education
Maharagama.
IVMessage from the Director
Since 2017, a rationalized curriculum, which is an updated version of the previous curriculum is in effect for the G.C.E (A/L) in the general education system of Sri Lanka. In this new curriculum cycle, revisions were made in the subject content, mode of delivery and curricular materials of the G.C.E. (A/L) Physics, Chemistry and Biology. Several alterations in the OHDUQLQJWHDFKLQJVHTXHQFHZHUHDOVRPDGH$QHZ7HDFKHUV¶*XLGHZDVLQWURGXFHGLQSODFH R I W K H S U H Y L R X V 7 H D F K H U