Why does liquid and gases show random motion

Explanation:

the molecules in liquids and gases aren't that closely bonded like solids, that's why they can take the shape of the container and move freely.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

personal, she chose to do it.