Across
- 3. capable of being shaped or bent or drawn out
- 4. number the sum of the number of neutrons and protons in an atomic nucleus
- 8. mass the property of an atom that causes it to have weight
- 9. the smallest component of an element
- 12. metal not resembling shiny, malleable, conductive elements
- 13. table arrangement of chemical elements according to atomic number
- 15. an immense cloud of gas and dust in interstellar space
- 17. elementary particle with negative charge.
- 19. mass of all the isotopes of that element
- 20. a subatomic particle with zero charge.
Down
- 1. the positively charged dense center of an atom.
- 2. a chemical element or alloy that is usually a shiny solid
- 5. a mixture containing two or more metallic elements
- 6. the property of transmitting heat, electricity, or sound
- 7. capable of being shaped or bent
- 10. a stable particle with positive charge.
- 11. a representation of something, often on a smaller scale
- 14. atom with same atomic number, different number of neutrons
- 16. ready susceptibility to chemical change
- 18. deterioration in metals from oxidation or chemical action