If Mercury, moved two orbital paths closer to the sun: what would be different? List serval differences, ideas ...

Well first of all, when it comes to orbits of the planets around

the sun, there's no such thing as "orbital paths", in the sense

of definite ("quantized") distances that the planets can occupy

but not in between. That's the case with the electrons in an atom,

but a planet's orbit can be any old distance from the sun at all.

If Mercury, or any planet, were somehow moved to an orbit closer

to the sun, then ...

- - its speed in orbit would be greater,

- - the distance around its orbit would be shorter,

- - its orbital period ("year") would be shorter,

- - the temperature everywhere on its surface would be higher,

- - if it has an atmosphere now, then its atmosphere would become

less dense, and might soon disappear entirely,

- - the intensity of x-rays, charged particles, and other forms of

solar radiation arriving at its surface would be greater.