  Using recently developed version of the configuration interaction method for
atoms with open shells we calculate electron structure and spectroscopic
properties of the mendelevium atom (Md, $Z=101$). These include energy levels,
first and second ionisation potentials, electron affinity, hyperfine structure
and electric dipole transition amplitudes between ground and low lying states
of opposite parity. The accuracy of the calculations is controlled by
performing similar calculations for lighter analog of mendelevium, thulium atom
and comparing the results with experiment and other calculations. The
calculations for Md are to address the lack of experimental data and help in
planing and interpreting the measurements.
