Use the information and table to answer the following question. The data in the table represents unknown element samples.

Element Type of ion formed in a chemical reaction
Phase at room

temperature

Reactivity
W

positive

solid highly reactive
X

does not form ions

gas non-reactive
Y

negative

gas highly reactive
Z positive liquid

somewhat reactive

Using your knowledge of periodic properties and trends, how would these elements BEST be classified and why?

Ibelieve that the correct answer is: c. along plate boundaries

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move. 

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j