Kemija - 2020. jesen, 19.

$2,13\times {10}^{23}2,13\; \backslash times\; 10^\{23\}$

$4,27\times {10}^{23}4,27\; \backslash times\; 10^\{23\}$

$2,13\times {10}^{24}2,13\; \backslash times\; 10^\{24\}$

$4,27\times {10}^{24}4,27\; \backslash times\; 10^\{24\}$