How did elements with more than 2 protons, such as the carbon in our cells, form? A. They were formed at the same time as hydrogen and helium right after the big bang.
B. They formed 400 million years after the universe formed in giant fusion reactors known as stars.
C. They are formed when lighter elements are pulled together by gravity to form a planet.
D. They formed from hydrogen and helium slamming into each other in the first few minutes after the big bang.

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

The phase where ice changes directly to gas is called sublimation 

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.