Atoms and Bonding

5. magnesium has this many electron levels
6. this element has five total electrons
8. shiny and reflective
9. a chemical ___________ is a combination of symbols that shows the ratio of elements in a compound
11. a covalent bond in which electrons are shared equally
14. able to be rolled into thin sheets
16. a neutral group of atoms joined by covalent bonds
18. this element has two electron levels and five valence electrons
19. a nitrogen molecule has one ________ bond
21. most molecular compounds do not _______ electric current
22. this tells you the ratio of elements in the compound
23. when an atom gains an electron, it becomes a ________ ion
25. those electrons that have the highest energy level
27. bond that forms as a result of the attraction between positive and negative ions
29. an oxygen molecule has one ________ bond

1. this molecule is an example of a polar covalent bond
2. an orderly, three-dimensional arrangement of ions
3. an atom or group of atoms that has an electric charge
4. a covalent bond in which electrons are shared unequally
7. means that metals can be bent easily and pulled into thin strands or wires
10. type of bond that usually forms when a nonmetal combines with a nonmetal
12. ions that are made of more than one atom
13. iodine would have this many dots around it for its electron dot diagram
15. an ionic ____________ consists of positive and negative ions
17. in naming ionic compounds, the name of this ion comes first
19. there are this many chlorine to magnesium in magnesium chloride
20. bond that forms as a result of the attraction between a positive metal ion and the many electrons surrounding it
24. this element has four electron levels and two valence electrons
26. ionic compounds have ________ melting points
28. a mixture made of two or more elements, at least one of which is a metal