Qo’chqorova R. The USE OF ELECTRON SPECTRA IN DETERMINING THE COORDINATION NUMBER OF CENTRAL ATOMS OF COMPLEX COMPOUNDS BASED ON Ni(II) AND Co(II) IONS: USE OF ELECTRON SPECTRA IN DETERMINING THE COORDINATION NUMBER OF CENTRAL ATOMS OF COMPLEX COMPOUNDS BASED ON Ni(II) AND Co(II) IONS. STJ NamIET [Internet]. 2025 Jun. 30 [cited 2026 Jan. 30];10(2):131-5. Available from: http://niet.uz/index.php/nj/article/view/719