liquids placed in a beaker will settle in specific layers which physical property of matter does this illustrate?

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?