Across
- 4. a solid material that is typically hard and shiny
- 5. is a bond formed when many metal atoms share their polled valence electrons
- 7. are electrons in the outer shell level of atom
- 8. is an atom that is no longer electrically neutral because it has lose or gain valence electron
- 11. The central part of an object
- 12. A chemical element that lacks the characteristic properties of a metal
- 13. smallest unit of matter that still represents an element
- 16. a molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons
- 18. number Number of protons in an element
Down
- 1. is a force that holds two or more atoms together valence electrons are either shared or transferred
- 2. A partial chemical element that have the same number of protons and electrons
- 3. matter that consists of one type of atom
- 6. The attraction between positively and negatively charged ions in a ionic compound
- 9. is a group of atoms held together by covalent bonding that acts as an independent unit
- 10. a model that represents valence electrons in an atom as dots around the elements chemical bond
- 14. is a chemical bond formed when two atoms share one or more pairs of valence
- 15. an element whose properties are between a metal and non metal
- 17. is a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
