5 Written Questions

1. negative
2. type of atom thats electrons determine its chemical properties
3. electrons are shared unequally giving different sides of the molecule opposite electrical charges
4. expands and becomes less dense when it freezes
5. mass # - atomic #

5 Matching Questions

1. how many electrons are in level 1?
2. losing electrons makes a _ charge
3. what are the four main elements?
4. how many electrons are in level 2?
5. electrons

1. a 2
2. b negative charge, found outside of nucleus
3. c positive
4. d carbon, hydrogen, oxygen, nitrogen
5. e up to 8

5 Multiple Choice Questions

1. protons, electrons, and neutrons
   1. three structures of atoms
   2. neutrons
   3. electrons
   4. # of protons =
2. when oppisitely charged ions attract + bond together
   1. compound
   2. electrons
   3. ionic bond
   4. ion
3. smallest form of matter
   1. ion
   2. protons
   3. atom
   4. water
4. same as protons
   1. # of protons =
   2. electrons
   3. # of electrons =
   4. # of neutrons =
5. form bonds
   1. how many electrons are in level 2?
   2. how many electrons are in level 1?
   3. how do elements fill up their outer energy level?
   4. second name for outer level

5 True/False Questions

1. ion → an atom that has an electrical charge

   True        False

2. covalent bonds → when atoms share one or more pairs of electrons

   True        False

3. neutrons → negative charge, found outside of nucleus

   True        False

4. protons → no charge, in nucleus

   True        False

5. compound → (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

   True        False