A Kr-84 beam was Coulomb-excited on a (MO)-M-98 target and a Ta-nat target. Six reduced matrix elements for 5 low-lying states were derived from the analysis using the least-squares code GOSIA. The quadrupole moment of the 2(1)(+) was newly obtained. The measured quadrupole moment and the B(E2) values are consistent with large-scale shell-model calculations which give a systematic description of N = 50 isotones. (C) 2002 Elsevier Science B.V. All rights reserved.