As I know all the SCI journals are Thompson Reuters journals and they have impact factors. But all the TR journals are not SCI journals and they don't have IFs. Is there any SCI journal which doesn't have IF?
SCI is a subset of SCIE, covering only the most highly cited and high impact factor Journals in each category. SCIE covers more than 8,500 notable and significant journals, across 150 disciplines in areas such as agricultural, biological, and environmental sciences, engineering, technology, applied science, medical and life sciences, and physical and chemical sciences.