The graph shows the melting points of the first thirty-six elements in the periodic table. image

Which statement is supported by the information in the graph?

A.
Nonmetal elements generally have lower melting points.

B.
The melting point increases as the atomic number increases.

C.
The melting point decreases as the atomic number increases.

D.
Metal elements generally melt slower than nonmetal elements.

The answer is solid copper 

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f. 

B) movement of materials into and out of the cell