What are two characteristics of an ideal gas that are not true of a real gas

There are many differences between ideal gas and real gas; some of the main differences are as following:

An ideal gas follows the formula PV=nRT but a real gas does not always follow this formula. There is no attraction between the molecules of an ideal gas. A real gas has significant particle attractions.The particles of an ideal gas lose no energy to its container. A real gas conducts and radiates heat, thereby losing energy.An ideal gas is infinitely compressible, a real gas will condense to a liquid at some pressure.Real gas particles have a volume and ideal gas particles do not.Real gas particles collide in-elastically (loses energy with collisions) and ideal gas particles collide elastically.

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