Discuss why the density of the two branched materials (hdpe and ldpe) differed, despite having the same chemical composition. how is the density of a material influenced by its ability to pack? using the internet, determine how the material properties of the two materials differ as a function of density; refer to such properties as strength, flexibility, and rigidness.

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8