Across
- 2. Regions where electrons are arranged around the nucleus
- 4. Neutral particle in the nucleus
- 7. Element that conducts electricity and is malleable
- 8. Vertical column in the periodic table
- 9. Positively charged particle in the nucleus
Down
- 1. Negatively charged particle orbiting the nucleus
- 3. Smallest unit of matter
- 4. Element that is brittle and a poor conductor
- 5. Horizontal row in the periodic table
- 6. Substance made of two or more different elements chemically bonded