Do You Know Atom?

4. — The pulling force between objects or particles with opposite electrical charges.
6. — The pushing-apart force between objects or particles with the same electrical charge.
7. — An atom with the same number of protons and electrons has an overall ___ charge.
11. — Anything that has mass and takes up space; all ___ is made of atoms.
13. — The small, dense center of an atom that contains protons and neutrons.
14. — An electron ___ is a region around the nucleus where electrons can be found.
15. — An electron has a ___ electrical charge.

1. — A positively charged particle found inside the nucleus of an atom.
2. — ___ electricity is a buildup of electrical charge on the surface of an object.
3. — The smallest unit of an element that still has the properties of that element.
5. — A particle with no electrical charge found inside the nucleus of an atom.
8. — A negatively charged particle found outside the nucleus of an atom.
9. — A property of a particle that can be positive, negative, or neutral.
10. — A pure substance made of only one type of atom.
12. — A proton has a ___ electrical charge.