Fizika - 2022. ogled, 21.

A. ${}^{26}\mathrm{M}\mathrm{g}\{\; \}^\{26\}\; \backslash mathrm\{Mg\}$

B. ${}^{27}\mathrm{M}\mathrm{g}\{\; \}^\{27\}\; \backslash mathrm\{Mg\}$

C. ${}^{26}\mathrm{A}\mathrm{l}\{\; \}^\{26\}\; \backslash mathrm\{Al\}$

D. ${}^{27}\mathrm{A}\mathrm{l}\{\; \}^\{27\}\; \backslash mathrm\{Al\}$