mass effect

an atom is mostly empty space 

the space between the electrons orbiting the nucleus is empty 

a molecule is mostly empty space 

the space between the electrons orbiting the nucleus is empty 

if many protons and/or neutrons are pressed together 

then they could form a larger atom 

but that atom would not be stable if pressure is removed 

so it would loose protons and/or neutrons 

so that the atom would become smaller 

but if protons and/or neutrons 

could constructed into components 

and those components would connect to each other 

then a very large atom could be created 

possibly subatomic particles would have to be manipulated  

to enable that 

the resulting product could be a superdense material 

that could revolutionize: 

fuel, battery, armour, weapons and building technologies 

and so on 

if an atom were to become very big 

then it would be interesting to see if the electron orbit 

would increase beyond a certain limit or not 

a very large molecule is different from a very large atom 

since the vast empty space between the nucleus and eletron orbit 

remains in the atoms combined into a very large molecule