text: *Memorial plaque on the building of the Radium Institute
  *A memorial plaque was installed on the building at 3 Roentgen Street in 1952 (architect Z. M. Vilensky).
  *A memorial plaque was installed on the building at 23 Kamennoostrovsky Prospekt in 1990 (sculptor E. N. Rotanov, architect S. L. Mikhailov).
  *In 1996, a memorial plaque was installed on the building at 7 Universitetskaya embankment with erroneous dates in the text: “In this building, from 1908 to 1949, the outstanding scientist, organizer of the nuclear industry, founder of the Department of Radiochemistry V. G. Khlopin studied and worked.” (In 1941-1945 he was evacuated to Kazan.)
  In the 1950s, a memorial plaque was installed on the house at 61 Lesnoy Avenue with the text: “The outstanding Russian chemist Vitaly Grigorievich Khlopin lived in this house from 1945 to 1950.”