Is it time for the atom to be given a new name?

How about monad?

If you don’t like @Jeruba‘s suggestion, what about calling it George?

TPFKAA

NO! Changing the name only serves to confuse people.

lets call it ragingloli

The loli

Let’s rename them as Farts.
You can cut farts, but if you do, no one in the area will be happy.

I would assume that the same backlash would occur when Pluto was made a dwarf planet.

No point, we just have to live with it… Changing it now after so long will only create more confusion. Also the meaning of the word doesn’t really have to be related to it’s function.

The Greek word still makes sense. Once you cut an atom into its constituent parts, they no longer comprise the element they were before you parsed it.

I’d go for a ‘mota’ (backwards atom).

In Spanish, ‘mota’ means ‘speck’ – and that seems relevant.

You could argue that the atom still isn’t “cuttable” in the sense the ancient Greeks knew and if you want to update the definition of “cuttable” then you can update the definition of “atom” which is simpler than inventing a new word.

Molecular unit, which we can use to create a new word – molunit. Although I am perfectly content with atom for the reasons given by @zenvelo