Intro to Atoms and the Periodic Table
Across
- 4. 2 or more elements chemically bonded
- 6. Mass Number - Atomic Number =
- 12. The property of an atom that causes it to have weight
- 13. Neutral charged particles around the nucleus
- 14. Another name for electron orbits
- 16. Atomic Mass Unit (abbreviated)
- 17. Abbreviation for each element
- 18. The sum of the number of neutrons and protons
- 19. Positive particles around the nucleus
- 20. The vertical rows in the periodic table
Down
- 1. Pure substances that can't be broken down or changed
- 2. Located outside the nucleus with electrons
- 3. The 8th element of the periodic table
- 5. Arrangement of elements according to atomic number on a table
- 7. Negative particles outside the nucleus
- 8. common name for the compound NaCl
- 9. When positive and negative charges cancel each other out
- 10. Number of protons represents
- 11. Center of atom
- 15. The horizontal rows in the periodic table