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Atoms

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  • Grinding coffee beans
    Chemical Change
    Physical Change
  • All matter is made of _________
    atoms
  • Most of the mass in an atom is concentrated in the
    Nucleus
    Protons
    Empty space
    Electron Cloud
  • What is the atomic mass of lead?
    207.2
  • If an atom has an atomic number of 16, how many protons does it have?
    16
  • Every horizontal row on the periodic table is called a ________
    period
  • How many electrons are in an atom of silver?
    47
  • Which statement best describes an electron?
    Smaller mass than a proton and a negative charge
    Greater mass than a proton and a positive charge
    Smaller mass than a proton and a positive charge
    Greater mass than a proton and a negative charge
  • Most of the periodic table consists of
    metalloids
    non-metals
    isotopes
    metals
  • Rolling a ball of clay into a long straight line
    Physical Change
    Chemical Change
  • Sodium has 11 neutrons, 12 protons, and 11 electrons. What is its mass?
    23
  • How many periods are on the periodic table?
    7
  • Melting an ice cube to get liquid water
    Chemical Change
    Physical Change
  • _________ and _________ equal an atom's mass
    Protons and Neutrons
  • Baking cookies
    Chemical Change
    Physical Change
  • Positively charged particle in an atom
    Proton
  • What do you call anything that has mass and takes up space?
    Matter
  • The overall charge of an atom is (usually) ________
    neutral
  • Negatively charged particle in an atom
    Electron
  • In which group are the Noble Gases located?
    Group 18
  • If an atom has an atomic number of 8, how many protons does it have?
    8
  • What is an example of a metalloid?
    Boron, Silicon, Arsenic, Antimony, Tellerium, etc.
  • An atom of chlorine has 17 protons and 18 neutrons, what is its atomic mass?
    35
  • Gases created when baking soda and vinegar are mixed
    Physical Change
    Chemical Change
  • How many groups are on the periodic table?
    18
  • Where are electrons found?
    Electron cloud
  • What must be true about the element "X"?
    It will have 6 electrons
    It will have 28 protons
    It will have a mass greater than 30 amu
    It will have chemical properties similar to C
  • A bar of chocolate melting in the sun
    Physical Change
    Chemical Change
  • How many protons does this element have?
    7
  • The ____________ is an abbreviation for the element's name
    symbol
  • The center of an atom is called the __________
    nucleus
  • What element is most similar to Barium (Ba)?
    Magnesium (Mg)
    Cesium (Cs)
    Tantalum (Ta)
    Boron (B)
  • How many neutrons are in an atom of gold?
    118
  • A neutral atom of lead has 82 protons, how many electrons does it have?
    82
  • What type of charge does a neutron have?
    Neutral/no charge
  • What is one method to make sugar dissolve faster in water?
    Heat it up, stir it, make the particles smaller
  • Every vertical column on the periodic table is called a ________
    group or family
  • What type of charge does an electron have?
    Negative
  • Neutral particle in an atom
    Neutron
  • What type of charge does a proton have?
    Positive
  • Group 18 is called the ____________ family
    Noble Gas
  • The second energy level can hold up to how many electrons?
    8
  • Where are protons and neutrons found?
    Nucleus
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