In the space-filling model, what determines the relative sizes of the spheres?

Explanation:

A space-filling model is defined as a model that shows three-dimensional representation of a molecule.

This model is also known as Calotte model. In this type of model, atoms are represented as balls or spheres and bonds between the atoms are represented by sticks.

The radii of sphere are proportional to the radii of atoms.

Therefore, we can conclude that in the space-filling model, atomic radii determines the relative sizes of the spheres.

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.