The question is asking if U235 a liquid or a gas. It is a solid and does not flow.
A liquid has a certain volume, flows, and assumes the shape of it's container.
liquid
Liquid is the state of matter that takes the shape of it's container and flows.
A liquid state is one in which a substance flows and takes the shape of its container.
Gas is a form of matter that does not take the shape of the container it is in. Instead, it expands to fill the space it is in, making it the only type of matter that does not have a fixed shape.
Liquid matter has a definite volume but takes the shape of its container. It flows and takes on the shape of its container due to weak intermolecular forces. Liquids have a density higher than gases but lower than solids.
if matter expands to fill the volume of its container its a suspension.
the state of matter that changes shape when placed in a different container is water
Both a gas and a liquid will take the shape of its container.
Superfluidity
The matter that takes the shape but not the volume of its container is a gas. Gases have particles that are far apart and move freely, allowing them to fill the shape of their container but not have a fixed volume.
Liquids flow and take the shape of their container. Unlike solids, which maintain a fixed shape, liquids have particles that are close together but can move freely, allowing them to adapt to the contours of their surroundings. This property is what allows liquids to fill various containers, regardless of their shape or size.