Question

HURRY

Which part of an atom is mostly empty space?
nucleus
proton cloud
electron cloud
neutron

Answer 1

Electron cloud! Good luck!

Answer 2

Electron cloud

Step-by-step explanation:

If you were to scale the size of the atom up to have the nucleus be about the size of a basket ball, then the placement of the actual electrons (about the size of a large marble at this scale) throughout the cloud would be many yards away from the nucleus.