Liquids are similar to gases in that they both have
a. a definite volume.
b. no definite shape.
c. no definite volume.
d. particles that remain in contact with each other.

The correct answer is B. No definite shape

Explanation:

Gas and liquid are two different states of matter. In these states, particles move more freely than in a solid-state. Due to this characteristic, in both liquids and gases, there is not a defined shape; instead, liquids and gases adapt to the container or space where they are, although gases occupy all the space in a container. Besides this, they differ because gases do not have a defined volume as this can change through compression, while liquids have a defined volume. Thus, one similarity between gases and liquids is that they do not have a defined shape (option B).

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.