($p, n$) Cross Sections of ${\mathrm{V}}^{51}$, ${\mathrm{Cr}}^{52}$, ${\mathrm{Cu}}^{63}$, ${\mathrm{Cu}}^{65}$, ${\mathrm{Ag}}^{107}$, ${\mathrm{Ag}}^{109}$, ${\mathrm{Cd}}^{111}$, ${\mathrm{Cd}}^{114}$, and ${\mathrm{La}}^{139}$ from 5 to 10.5 MeV

($p, n$) cross sections were measured by the activation technique in the energy range 5 to 10.5 MeV for the target nuclides ${\mathrm{V}}^{51}$, ${\mathrm{Cr}}^{52}$, ${\mathrm{Cu}}^{63}$, ${\mathrm{Cu}}^{65}$, ${\mathrm{Ag}}^{107}$, ${\mathrm{Ag}}^{109}$, ${\mathrm{Cd}}^{111}$, ${\mathrm{Cd}}^{114}$, and ${\mathrm{La}}^{139}$. Approximate proton reaction cross sections were obtained at energies below the ($p, 2n$) threshold by adding to the ($p, n$) cross sections the previously reported charged-particle-emission ($p, q$) cross sections. These results are compared at a few energies with volume absorption and surface absorption optical-model calculations of the proton reaction cross sections.