Kemija - 2009./10. ljeto - 12.

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

B. $[\mathrm{A}\mathrm{r}]3{\mathrm{d}}^{10}4{\mathrm{s}}^{2}4{\mathrm{p}}^2[\backslash mathrm\{A\; r\}]\; ~3\; \backslash mathrm\{d\}^\{10\}\; ~4\; \backslash mathrm\{s\}^\{2\}\; ~4\; \backslash mathrm\{p\}^\{2\}$

C. $[\mathrm{K}\mathrm{r}]4{\mathrm{d}}^{3}5{\mathrm{s}}^2[\backslash mathrm\{Kr\}]\; 4\; \backslash mathrm\{~d\}^\{3\}\; 5\; \backslash mathrm\{~s\}^\{2\}$

D. $[\mathrm{X}\mathrm{e}]6{\mathrm{s}}^1[\backslash mathrm\{Xe\}]\; 6\; \backslash mathrm\{~s\}^\{1\}$