The end result of increased molecular motion is that the object expands and takes up more space. {I don’t know if it’s right, I‘m just trying to help}
The atomic mass is useful in chemistry when it is paired with the mole concept: the atomic mass of an element, measured in amu, is the same as the mass in grams of one mole of an element. since the atomic mass of iron is 55.847 amu, one mole of iron atoms would weigh 55.847 grams.
To my best knowledge I believe the answer is electrons are distributed around the nucleus and occupy almost all the volume of the atom.
I believe the four classifications of matter would be:
- element
- compound
- homogenous mixture
- heterogeneous mixture
And then the two pure substances would be element and compound.
