Kemija - 2020. jesen, 6.

$[\mathrm{N}\mathrm{e}]3{\mathrm{s}}^1[\backslash mathrm\{Ne\}]\; ~3\; \backslash mathrm\{s\}^\{1\}$

$[\mathrm{A}\mathrm{r}]4{\mathrm{s}}^2[\backslash mathrm\{Ar\}]\; ~4\; \backslash mathrm\{s\}^\{2\}$

$[\mathrm{A}\mathrm{r}]3{\mathrm{d}}^{5}4{\mathrm{s}}^2[\backslash mathrm\{Ar\}]\; ~3\; \backslash mathrm\{d\}^\{5\}\; ~4\; \backslash mathrm\{s\}^\{2\}$

$[\mathrm{N}\mathrm{e}]3{\mathrm{s}}^{2}3{\mathrm{p}}^5[\backslash mathrm\{Ne\}]\; ~3\; \backslash mathrm\{s\}^\{2\}\; ~3\; \backslash mathrm\{p\}^\{5\}$