Chemistry
Across
- 3. cubic, every atom has 8 neighbors including sodium potassium iron chromium and tungsten.
- 5. unit, the lowest whole number ratio of ions in an ionic compound.
- 7. formula, shows the kinds and numbers of atoms in the smallest representative unit of a substance.
- 8. number, the number of ions of opposite charge that surround the ion in a crystal.
- 10. mixtures compared to two or more elements.
- 11. , a solid in which the atoms, ions, or molecules are arranged in an ordinary, repeating, three dimensional pattern called a crystal lattice.
- 15. Rule, in forming compounds atoms tend to achieve the electron configurations of noble gas.
- 16. Dot Structures, diagrams that show valence electrons as dots.
- 17. bonds, electric forces that hold ions together in ionic compounds
- 19. substances that can be drawn into wires; they are ductile and malleable, good conductors.
Down
- 1. Ions, Ions that are produced when atoms of chlorine and other halogens gain electrons.
- 2. close-packed arrangement, has 6 sides and is closely packed includes magnesium zinc and cadmium.
- 4. Ions with a positive charge.
- 6. bonds, consist of the attraction of free-floating valence electrons for the positively charged metal ions.
- 9. write the electron configuration of Cd2+.
- 11. any atom or group of atoms with a positive charge.
- 12. Ions with a negative charge.
- 13. compounds, compounds composed of cations and anions.
- 14. cubic, every atom has 12 neighbors.
- 18. electron, electrons in the Highest occupied energy level of an element's atoms.