Table 2.

Numbers of Pd atoms in the core, $n_{core}^{Pd}$, and surface (111) terrace, $n_{terrace}^{Pd}$, sites of NP₂₀₁ at various compositions Pd_201−xAu_x and the corresponding Pd concentrations, ${\rho }_{core}^{Pd}$ and ${\theta }_{terrace}^{Pd}$.

	${\mathit{n}}_{\mathit{c}\mathit{o}\mathit{r}\mathit{e}}^{\mathit{P}\mathit{d}}$	${\mathit{\rho }}_{\mathit{c}\mathit{o}\mathit{r}\mathit{e}}^{\mathit{P}\mathit{d}}$	${\mathit{n}}_{\mathit{t}\mathit{e}\mathit{r}\mathit{r}\mathit{a}\mathit{c}\mathit{e}}^{\mathit{P}\mathit{d}}$	${\mathit{\theta }}_{\mathit{t}\mathit{e}\mathit{r}\mathit{r}\mathit{a}\mathit{c}\mathit{e}}^{\mathit{P}\mathit{d}}$
Pd19Au182	19	0.24	0	0
Pd44Au157	44	0.56	0	0
Pd51Au150	48	0.60	3	0.05
Pd56Au145	50	0.63	6	0.11
Pd62Au139	56	0.71	6	0.11
Pd67Au134	60	0.76	7	0.125
Pd73Au128	63	0.80	10	0.18
Pd79Au122	63	0.80	16	0.29
Pd101Au100	76	0.96	24 a	0.41

^a Including one atom on (001) terrace.