Gas pressure results from the force exerted by a gas per

Explanation:

The kinetic molecular theory of gases depicts the characteristics and behavior of the gases in function of its particles (atoms or molecules).

As stated per the kinetic theory, a gas is consituted by a large amount of tiny particles in rapid random motion.

As result of this rapid continous motion, a huge number of particles are colliding at any moment against the walls of the vessel that contains the gas. The gas pressure, then, is the result of the force that the particles of gas exert over the walls of the container.

As per definition, the net force of may particles divided by the area gives the pressure: P = F / A.

So, the pressure is the force per unit area, which permits you to complete the sentence:

Gas pressure results from the force exerted by a gas per unit area.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.