Atom Worksheet by mpv32468

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									                   Atom Worksheet

The Atom - Building Block of all matter.
1) Structure
   a) Nucleus (Core) particles
       i) Neutrons
           (1) No Charge
           (2) Strongly Bound to Protons
       ii) Protons
           (1) Positively Charged
           (2) Number Identifies the element
           (3) Strongly bound to Neutrons
   b) Orbiting particles
       i) Electrons
           (1) Negatively Charged
           (2) Farther out from nucleus, weaker the bond
       ii) Multiple orbits dependent on number of electrons
           (1) Outside orbit – valence shell
           (2) Fewer than 4 electrons in valence shell = conductor
2) Types
   a) Balanced
       i) Equal number of Protons and Electrons
       ii) Zero Charge
   b) Unbalanced
       i) Negatively Charged Ion - More Electrons than Protons
       ii) Positively Charged Ion - More Protons than Electrons
Atoms Worksheet :Question Sheet

1. What are the three main particles of an atom?

2. What are the charges of each one of these particles?

3. What is the center of an atom called?

4. What is the charge of the center of an atom?

5. What makes up the center of the atom?

6. What orbits the center of an atom?

7. Like charges (i.e. + and +) do what?

8. What is the electron configuration for the first 3 shell or orbits in an atom?

9. How many particles of the part that orbits the nucleus is on the shell closet to the
center of the atom?

10. Draw a Bohr model of the atom for Hydrogen?

11. What is the atomic number of an atom?

12. Can 2 different elements have the same atomic number?

13. What is mercury's atomic number?

14. How many protons does Mercury have?

15. What element has one less proton than mercury?

16. What makes up the atomic weight of an atom?

17. What is the atomic weight of gold?

18. How many neutrons does gold have?

19. How many electrons does a neutral gold atom have?

20. Why is the atomic weight on the periodic table never a whole number?

21. What is an isotope?

22. How can an atom have a negative charge?
23. How can an atom have a positive charge?

24. How can an atom have a neutral charge?

25. Does the number of protons for Carbon ever change?
Atom Worksheet
    Per pair of students:
         2 “Classification of Matter” activity sheets
         red, green, and blue colored pencils
         1 set of bead samples (see note)

           Note: Preparation of bead samples
               Materials required: red, green, blue, and pearl beads; 180 small (60mm
               size) plastic petri dishes, super glue, fine copper or craft wire, 20
               quart-sized zipper bags.

               For one complete sample set, fill nine petri dishes and label the lids as
               described in the table below. A Sharpie works well for the label, and a
               piece of clear tape over the writing will make the label more
               permanent. Use a dab of super glue to affix the lids securely.

      Dish label      Dish contents                                Classification
      R               Red beads only                               Pure substance,
      B               Blue beads only                              Pure substance,
      Gn2             Green beads, wired in pairs                  Pure substance,
                                                                   diatomic element
      BGn2P           Several pieces, each consisting of one       Pure substance,
                      blue bead, two green beads, and a pearl      compound
                      wired together
      PGn             Several pieces, each consisting of a         Pure substance,
                      pearl wired to a green bead                  compound
      R4Gn            Several pieces, each consisting of four      Pure substance,
                      red beads wired to a green bead              compound
      RGn + Gn2       Some green beads wired in pairs, as          mixture
                      well as several pieces consisting of a red
                      bead wired to a green bead
      R + P + Gn2     Loose red beads, loose pearls, and green     mixture
                      beads wired in pairs
      B+R             Loose red beads and blue beads               mixture

    Make 20 complete sets and store them in quart-sized zipper bags to have a class
set ready to go.

    Remind students that lab materials are to be used ONLY as directed
    No opening of Petri dishes
    Return any loose beads to the teacher
Name _______________                                         Date _____________

                     Reading Comprehension Worksheet
                     Compound & Elements

The 100 plus elements are the "alphabet" of matter because every tangible
material is a combinations of these elements.

The elements are categorized as: Metals, Non-Metals, Metalloids, Noble Gases

This main categorization is based on the electrical attributes of the elements.
Some elements tend to "lose" an electron, and become postively charged.
(These are the metals), Other elements tend to "acquire" an electron, and
become negatively charged, (the non metals). The third group, (metalloids), fall
in between these two extremes. And the Noble Gas category is "unelectrical" --
displays no interest in either acquiring and losing an electron, but unlike the
metalloids who can be "persuaded" one way or the other -- the noble ones simply
don't engage.

Since chemical reaction and chemical bonding are electrical in nature, it so
happens that members of a certain category can substitute for another member
and thereby create a combination which is slightly different, but generally similar.
Say then that by carefully chosing a replacement element in a chemical
compound, it is possible to "engineer" a desired slight change in the nature of the
compound. This used to be the art, and now is the science of chemistry.

   1. Which elements are likely to lose
   electrons?                                 _________________________________

   2. Which elements are likely to gain
3. Which type of elements are likely
to have no electical charge at all?

4. How does knowing a great deal
about the property of certain          _________________________________
elements help us as humans?
Name _______________                                                       Date _____________

  Compounds and Elements Word Chop
Directions: The table below contains words that have been chopped in half. Find the pieces
that fit together and write them in the answer area below.

                      ture             sym             mole       ment

                      rons            comp             ound       sity

                      prot             bol               ele      den

                     trons             mix              neut      ume

                      rons             cule             elec      vol


________________________                           ________________________

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________________________                           ________________________

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________________________                           ________________________
Name _______________                                          Date _____________

 Elements & Compounds Word Search Worksheet

Directions: All words are positioned left to right, right to left, and diagonally.

  E P B F        O D S V B B C I              O L R I         D P H S M M I
  O P D K J          L U V F       C W B Y L X O L R C T F F L
  V L R M D L G A R O K P                     B A J       Q C Q N C V O W
  X O C O W U I            U S     H O Q E L E M E N T H R T Y
  B B L U T Y J Y T I                 G L P S P           M T E P L E H S
  L M N U H R J V U Y H F                     K U J       W R Q O Z S Q O
  J   Y O V M E O I            G G M L M E U U W A H G V S T
  P S Y D S          E X N X E A C Z H T Z I                    X R K N L L
  V L P U J          D G I     S   L Z R M X K O S              V Y F K O V
  Z B G V D Q O G Q U U W I                       D G E S       V T M F C K
  Q N Y W Y Q H K W C L M T N A G W D I                                S S K Y
  J   B Y W P        C U N Q E C O M P O U N D S J                         B E Z
  M G V I        P   B Y U O L U W S G Q W K H N V F A Q
  D U C J        J   S O O E O Z S            D V S       K X E E G T N V
  R Q Q S        A N A F R M Z Q T R W A Q Y D O E J                                 Q
  O L N E U T R O N S J                   R R R H P           L B J X F K K
  Q Q A J        Y G J H X L C O I                E L E C T R O N S A
  Q N L U M K B K H H B S                     I   I   F   I   B D X D L T Y

ELEMENT               MOLECULE               MIXTURE                   COMPOUND

DENSITY               NEUTRONS               PROTONS

SYMBOL                ELECTRONS              VOLUME
Name _______________                        Date _____________

                        Chemical Maze Worksheet

Guide the liquids to the flasks.
  Elements and Compounds Vocabulary Quiz

Directions: Match the vocabulary words on the left with the definitions on the right.

                              something that represents something else, esp. a material
  1. volume                   sign or object that stands for a complex or abstract

  2. element                  made up of two or more parts or elements.

                              the product of mixing two or more items or substances
  3. symbol

  4. mixture                  the state or condition of being dense.

                              a single atom or several atoms bound together
                              electomagnetically, forming the smallest particle that
  5. molecule
                              possesses all the characteristic physical and chemical
                              properties of an element or compound.

                              a negatively charged particle, considered a fundamental
  6. compound                 unit of matter, that exists independently or outside the
                              nucleus of an atom.

                              a collection of pages of writing or print bound together;
  7. neutron

                              an elementary particle having no charge, spin of one-half,
                              and mass approximately equal to a proton, present in the
  8. electron
                              nucleus of all atoms except the common isotope of

  9. density                  a part of any whole.
                         Element Symbols

Directions: Give the symbol for each of the named elements below.

               Element                               Symbol
a. lithium

b. potassium

c. carbon

d. silver

e. sulfur

f. fluorine

g. nitrogen

h. oxygen

i. boron

j. hydrogen

k. helium

l. sodium

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