Atomic Structure and Chemistry TEST 2004-05

D Farnsworth

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  1. How many elements are found naturally in nature?

    2. Your answer:
    66
    88
    22
    44

  2. Which element makes up more than 90 percent of the atoms in the universe?

    3. Your answer:
    hydrogen
    helium
    nitrogen
    oxygen

  3. What was the original element?

    4. Your answer:
    helium
    oxygen
    nitrogen
    hydrogen

  4. Who discovered the existence of atoms?

    5. Your answer:
    Robert Brown
    Neils Bohr
    Heinrich Hertz
    Dmitri Mendeleev

  5. What results from collisions between visible and invisible atoms?

    6. Your answer:
    Brownian motion
    radiation
    explosion
    matter

  6. What is named after the Greek word for amber?

    7. Your answer:
    electron
    nucleus
    quark
    atom

  7. What has the same mass as a proton but no charge?

    8. Your answer:
    atom
    electron
    neutron
    quark

  8. What are smaller particles called that make up protons and neutrons?

    9. Your answer:
    quarks
    enzymes
    atoms
    electrons

  9. Who was the Danish physicist who developed a planetary model of the atom in 1911?

    10. Your answer:
    Robert Brown
    Neils Bohr
    Dmitri Mendeleev
    Heinrich Hertz

  10. What kind of rays carry a positive electrical charge?

    11. Your answer:
    alpha
    beta
    radioactive
    gamma

  11. What kind of rays carry no charge?

    12. Your answer:
    beta
    radioactive
    gamma
    alpha

  12. What kind of particle is a combination of 2 protons and 2 neutrons?

    13. Your answer:
    beta
    gamma
    radioactive
    alpha

  13. What kind of particles do not normally penetrate through light material such as paper or clothing?

    14. Your answer:
    beta
    gamma
    radioactive
    alpha

  14. What kind of particle is an electron ejected from a nucleus, where it originates from a neutron?

    15. Your answer:
    alpha
    beta
    gamma
    radioactive

  15. What kind of particle carries a single negative charge?

    16. Your answer:
    radioactive
    beta
    alpha
    gamma

  16. What kind of particles can penetrate light materials such as paper and clothing, but not able to penetrate deeply into denser materials such as water and aluminum?

    17. Your answer:
    alpha
    gamma
    radioactive
    beta

  17. What kind of rays are the high-frequency electromagnetic radiation emitted by radioactive elements?

    18. Your answer:
    alpha
    beta
    radioactive
    gamma

  18. What kind of rays are pure energy?

    19. Your answer:
    alpha
    beta
    radioactive
    gamma

  19. What kind of rays can penetrate through most materials but can not penetrate through unusually dense materials such as lead?

    20. Your answer:
    radioactive
    beta
    alpha
    gamma

  20. What kind of rays are most harmful to our bodies?

    21. Your answer:
    beta
    radioactive
    alpha
    gamma

  21. What is the term used to express the rate of decay of radioactive isotope?

    22. Your answer:
    half-life
    sublimation
    transmutation
    vaporization

  22. What kind of particle does a radioactive nucleus emit to form a different element?

    23. Your answer:
    gamma
    radioactive
    beta
    alpha

  23. What is the changing of a chemical element to another called?

    24. Your answer:
    vaporization
    transmutation
    half-life
    sublimation

  24. Who was the first of many investigators to succeed in transmuting a chemical element?

    25. Your answer:
    Robert Brown
    Dmitri Mendeleev
    Ernest Rutherford
    Neils Bohr

  25. What kinds of elements are brittle and shatter when hammered?

    26. Your answer:
    halogens
    metals
    metaloids
    nonmetals

  26. What kinds of elements are useful in the integrated circuits of computers?

    27. Your answer:
    metals
    halogens
    nonmetals
    metaloids

  27. What kinds of mixtures were used in the preparation of soaps?

    28. Your answer:
    alkali earth metals
    actinides
    alkalines
    noble gases

  28. What kind of metals do not melt when put in fire?

    29. Your answer:
    alkali
    alkali earth
    lanthanides
    halogens

  29. What are the unreactive elements of the group #18 called?

    30. Your answer:
    alkalines
    alkali earth metals
    transition
    noble gases

  30. What kinds of metals tend to be harder than the alkali metals and less reactive with water so are used for structural purposes?

    31. Your answer:
    actinides
    transition
    alkali earth metals
    noble gases

  31. What three transition metals are non corrosive and used as implant devices such as hip implants?

    32. Your answer:
    boron
    titanium
    radon
    antimony

  32. What three transition metals are non corrosive and used as implant devices such as hip implants?

    33. Your answer:
    molybdenum
    argon
    platinum
    silicon

  33. What three transition metals are non corrosive and used as implant devices such as hip implants?

    34. Your answer:
    lead
    cobalt
    manganese
    scandum

  34. What is an atom that has either lost or gained one or more electrons?

    35. Your answer:
    a quark
    a molecule
    an ion
    a particle

  35. What kind of charge does an ion have if it has gained electrons?

    36. Your answer:
    heavy
    negative
    positive
    neutral

  36. What kind of charge does an ion have if it has lost electrons?

    37. Your answer:
    positive
    neutral
    heavy
    negative

  37. What is any mixture composed of 2 or more metallic elements?

    38. Your answer:
    covalent bond
    alloy
    ionic bond
    heterogeneous

  38. . What is the electrical force of attraction between two oppositely charged ions?

    39. Your answer:
    alloy
    ionic bond
    heterogeneous
    covalent bond

  39. What part of the periodic table of elements has the greatest tendency to lose electrons?

    40. Your answer:
    center
    right
    top
    left

  40. What part of the periodic table of elements has the greatest tendency to gain electrons, with the exception of the noble gases?

    41. Your answer:
    top
    center
    left
    right

  41. What type of electrical forces of attraction shares electrons?

    42. Your answer:
    ionic bond
    heterogeneous
    covalent bond
    alloy

  42. What is a group of atoms held tightly together by covalent bonds?

    43. Your answer:
    quark
    particle
    molecule
    nucleous

  43. What is any material consisting of only one type of atoms classified as?

    44. Your answer:
    a molecule
    an element
    a quark
    a particle

  44. What is the smallest particle of an element that still retains all the chemical properties of that element?

    45. Your answer:
    an electron
    an atom
    a quark
    a molecule

  45. What is formed when atoms of different elements attach to one another?

    46. Your answer:
    a compound
    a molecule
    a quark
    a bond

  46. What has physical and chemical properties that are different from the properties of their elemental components?

    47. Your answer:
    liquids
    compounds
    solids
    mixtures

  47. What is the process of collecting a vaporized substance?

    48. Your answer:
    sublimation
    distillation
    evaporation
    compression

  48. What kind of mixture consists of different components that can be seen as individual substances?

    49. Your answer:
    homogeneous
    metallic
    ionic
    heterongenous

  49. What is an example of a solution?

    50. Your answer:
    blood
    air
    fog
    milk

  50. What is an example of a suspension?

    51. Your answer:
    salt water
    white gold
    air
    blood

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