Question

the blank of the atom contains almost all of the mass, while the blank contains almost no mass. the blank is positively charged, while the blank is negatively charged. the blank is almost completely empty space, while the blank is extremely dense.

Explanation:

To solve this, we recall the structure of an atom. The nucleus contains protons (positive) and neutrons (neutral), so it has almost all the mass. The electron cloud (or just electrons) is where electrons (negative) exist and has almost no mass. The nucleus is extremely dense, and the electron cloud is almost empty space.

1. First blank (mass - containing part): Nucleus (has protons and neutrons, most mass)
2. Second blank (no - mass part): Electron cloud (or electrons, little mass)
3. Third blank (positive charge): Protons (in nucleus, positive)
4. Fourth blank (negative charge): Electrons (in electron cloud, negative)
5. Fifth blank (empty space): Electron cloud (large volume, mostly empty)
6. Sixth blank (dense part): Nucleus (small volume, high density)

Answer:

1. The \boxed{Nucleus} of the atom contains almost all of the mass, while the \boxed{Electron Cloud} contains almost no mass.
2. The \boxed{Protons} (in the nucleus) is positively charged, while the \boxed{Electrons} (in the electron cloud) is negatively charged.
3. The \boxed{Electron Cloud} is almost completely empty space, while the \boxed{Nucleus} is extremely dense.