Final answer:
Liquid neon and liquid krypton, both being noble gases, have similar intermolecular forces and therefore similar surface tensions.
Step-by-step explanation:
Liquid neon and liquid krypton both belong to the category of noble gases.
These gases have weak intermolecular forces, which means that their molecules are only attracted by dispersion forces.
Since both neon and krypton have similar intermolecular forces, it is safe to say that they will have similar surface tensions.
However, it is important to note that the strength of dispersion forces generally increases as the size and shape of the molecule increase.
Therefore, liquid krypton, with larger molecules compared to liquid neon, may have a slightly higher surface tension, but the difference would likely be negligible.