Professor Yitzhak Apeloig is the Nahum Guzik Distinguished University Professor in Chemistry at the Technion-Israel Institute of Technology.

He served as the President of the Technion from 2001 to 2009.

His contributions to chemistry are, both experimental, and theoretical, mainly to organosilicon and physical organic chemistry, and to computational chemistry; in particular research on low-coordination silicon compounds, multiply-bonded silicon compounds, reactive intermediate, such as vinyl and phenyl cations, silyl radicals, cations, and anions.

His theoretical predictions have guided experiment of many groups worldwide. He has co-edited a four-volume compendium, "The Chemistry of Organic Silicon Compounds"(1998).

As President of the Technion-Israel Institute of Technology (2001-2009), Apeloig established a range of multi- and interdisciplinary institutes and advanced the university's reputation as a leading engineering technological institute. In 1996 he established (together with S. Shaik) the Lise Meitner Minerva Center for Computational Quantum Chemistry and was its co-director. He has received the Israel Chemical Society Prize (2002), Wacker Silicon Award (2007), an Honorary Doctorate from TU Berlin, American Chemical Society F.S. Kipping Award (2010) , a A.v. Humboldt Senior Research Awardee (several times),a Japan for the Promotion of Science Fellowship (twice). He received the Israel Chemical Society Gold Medal (2017) and the Order of Merit (First Degree) of the President of the Federal Republic of Germany (2011). He has held visiting positions at Cornell University, University of Utah, and several institutions in Japan and Germany. He is a Fellow of the AAAS, a Foreign Honorary Member of the American Academy of Arts and Sciences and a member of Academia Europaea.