Born-Mayer-Type Interatomic Potential for Neutral Ground-State Atoms withZ=2toZ=105

Born-Mayer parameters are given which permit, with good accuracy (to within 6%), a greatly simplified computation of a previously derived interatomic potential, $U\left(R\right)\mathrm{}$, based on the Thomas-Fermi-Dirac (TFD) approximation. The numerical values of $A$ and $b$ appearing in $U\left(R\right)=A \exp \mathrm{}(-bR)\mathrm{}$ are tabulated in two sets of commonly used units for 104 homonuclear pairs of neutral ground-state atoms having $Z=2\mathrm{}$ to $Z=105\mathrm{}$. Approximate lower and upper limits of applicability, $R_l$ and $R_u$, are also listed, as is the magnitude of the maximum percent error ($\epsilon$) for each fit. $R_l$ is generally $\sim 1.5a_0(a_0=0.529\mathrm{}17 \AA )$, while $R_u\sim 3.5a_0$. The effective upper limit probably lies at $\sim 6-8a_0$. Also, with the aid of the given table and the combining rule $U_{12}\simeq {\left(U_{11}{U}_{22}\right)}^{\frac{1}{2}}$, the interaction energies of a total of 5356 heteronuclear diatoms can readily be obtained.