Across
- 6. the number of protons in the nucleus of an atom
- 7. substance which does not
- 10. group 1 and 2
- 11. an element whose properties are intermediate between metals
Down
- 1. able to be deformed without losing toughness
- 2. soft and easy to break
- 3. an element of substances that is not a metal
- 4. the quality of power
- 5. easy influenced
- 8. a element
- 9. layout of all the chemical elements