No, it is not possible to remove all of the empty spaces from an atom and obtain 100 percent pure mass. Atoms are composed of a nucleus, which contains protons and neutrons, and electrons that orbit around the nucleus. The majority of an atom's mass is concentrated in the nucleus, while the electrons contribute very little to the overall mass.
Empty space exists between the nucleus and the electrons, as well as between the electrons themselves. However, it is important to note that this empty space is not truly empty but rather occupied by electron clouds or probability distributions that describe the likelihood of finding an electron in a particular region around the nucleus.
Removing all the empty space from an atom would require removing the electrons, resulting in an ion or a positively charged particle. However, this would not increase the mass of the atom because the mass primarily comes from the protons and neutrons in the nucleus. The electrons have a very small mass compared to protons and neutrons.
Therefore, the mass of an atom cannot be increased by removing empty spaces since the mass is already concentrated in the nucleus and removing the electrons does not significantly affect the overall mass of the atom.