In the Hypothetical Atomic Interaction Shown in Figure C9 $3 \times$

In the hypothetical atomic interaction shown in figure C9.13, assume that initially the atoms have a total energy of $3 \times$ $10^{-21} \mathrm{~J}$ at $r=0.1 \mathrm{~nm}$ . These atoms are

A) Unbound (they will separate to infinity) .
B) Bound (they will not separate to infinity) .
C) The answer depends on whether the atoms are initially moving toward or away from each other.