Across
- 1. Bond A chemical bond resulting from the attraction between oppositely charged ions
- 3. bond a covalent bond in which two atoms share one pair of electrons
- 7. ions ions formed from a single atom
- 8. A positively charged ion
- 10. Rule Hydrogen and Helium only want two electrons
- 11. A charged atom
- 14. Electrons Electrons on the outermost energy level of an atom
- 15. the basic unit of a chemical element
- 17. An ionic compound whose aqueous solution conducts an electric current
- 19. A negatively charged ion
- 21. bond A chemical bond formed when atoms share two pairs of electrons
- 22. bond A chemical bond that involves sharing a pair of electrons between atoms in a molecule
- 23. bond a bond formed by the attraction between positively charged metal ions and the electrons around them
Down
- 2. State the condition of an atom expressed by the number of electrons that the atom needs to reach its elemental form
- 4. structures diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.
- 5. metal and nonmetal elements join together.
- 6. formula gives the simplest whole number ratio of the ions which form an ionic compound
- 7. compound a compound that is composed of molecules
- 9. formula bonding at least two nonmetals and have an electromagnetically difference
- 12. Bond The attractive force that holds atoms or ions together
- 13. ion A charged group of covalently bonded atoms
- 16. bond A chemical bond formed when atoms share three pairs of electrons
- 18. A substance made up of atoms of two or more different elements joined by chemical bonds
- 20. Rule States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons