Na- ²³Na, 11, 23
¹¹
Mg - 12, 12, 12, 24
Mg -12, 25, 13
Cl - 35, 17, 35
Cl - ³⁷Cl, 17, 20, 17, 37
¹⁷
Fe - ⁵⁶ Fe, 26, 56, 26
²⁶
Cu - 29, 34, 29, 63
Cu - ⁶⁵Cu, 65, 29, 36
²⁹
