Solids hold their shape due to their atoms being held tightly together.
solid
The matter that can change shape and volume is gas.
A gas has no definite shape or volume.
a fluid
Disulfide or peptide bonds.
Solids are the type of matter with contain their own shape. Liquids take the shape of the container they are in and gasses fill their container, so therefore, solids are the type of matter which have a shape of their own.
The state of matter that holds its shape is called solid. Other states such as liquid, gas, and plasma, do not hold their shape.
The type of matter with a definite volume but no fixed shape is a liquid. In a gas, there is no definite volume or shape, and in a solid there is a fixed shape and definite volume. A liquid is free to adopt of shape of its container, but its volume is fixed.
A gas.
Solid
gas
Gaseous states of matter spread apart to fill the shape and the volume of the container which holds them.