Across
- 3. measured in rows and columns.
- 5. of an atom or molecule
- 7. Is a energy that associated with electrons
- 11. form or a nuclear reaction.
- 13. the nucleus
- 14. Is the fixed amount of energy that a system described by quantum mechanics
- 16. is the composition or the distribution of
- 18. the top tsize of a text display is
- 21. A process that involves rearrangement of
Down
- 1. as opposed to a change in
- 2. with similar atomic structure in vertical
- 4. molecular or ionic structure of a
- 6. Is vertical line of characters extending
- 8. Is a table of the chemical elements
- 9. The number of protons in the nucleus of
- 10. no division.
- 12. Is a row of chemical elements.
- 15. atom
- 17. of protons and neutrons in the
- 19. It is approximately equivalent to the
- 20. in order of atomic number