Drill: Calculate the volume in mL of a 2.0 m by 500.0 mm by 4.00 x 105 mm container.

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• Drill Calculate the volume in mL of a 2.0 m by
  500.0 mm by 4.00 x 105 mm container.
• 1 cm3 1 mL

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Review Drill,Grade HW Collect Both
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CHM II HW

• Review PPs 1 4
• Work the attached assignment turn it in
  tomorrow.

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Are there any questions on previous material?
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Chapter 2

• Atoms, Molecules, Ions

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Atomic Theory

• Elements composed of atoms
• Atoms cant be changed
• Compounds of multiple atoms
• John Dalton

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Conservation of Mass

• In ordinary chemical reactions, matter can be
  neither created nor destroyed

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Constant Composition

• Compounds contain elements that are always in the
  same proportions

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Multiple Proportions

• The elements making up a compound will form whole
  number ratios

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Atom

• The smallest particle that an element can be
  broken down into and still maintain the
  properties of the element

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Nuclear Atom

• Proved by Rutherford Bohr in the famous gold
  foil experiments

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Atomic Composition

• Proton in the nucleus
• Neutron in the nucleus
• Electron outside the nucleus

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Proton

• In Nucleus
• 1 charge
• About 1 amu in mass

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Neutron

• In nucleus
• Neutral in charge
• Mass is about 1 amu

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Electron

• Outside the nucleus
• -1 in charge
• Negligible mass about 1/2000 amu

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Electron Charge

• Determined by Robert Milliken in the famous oil
  droplet experiment

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Atomic Number

• The number of protons in an element
• Z - number

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Mass Number

• The number of protons and neutrons in an atom
• A - number

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Nuclear Symbol

• A 4
• X He
• Z 2

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Isotopes

• Atoms that contain the same number of protons,
  but different number of neutrons
• Z constant, A variable

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Periodic Table

• Graphic representation of all the elements
  indicating size, charge, electronic structure,
  reactivity

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Periods

• Rows which indicate energy level or shell or size
  of the atoms

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Groups or Families

• Columns which indicate the number of electrons in
  the outermost energy level determining charge
  reactivity

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Metals

• Left three quarters of the chart
• Lose electrons
• Become positive

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Nonmetals

• Upper right portion
• Gain, lose, or share electrons when they react

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Metalloids

• Along the stair-stepped line from B to At
• Share properties of metals nonmetals

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Compound

• A group of atoms that are chemically combined

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Molecule

• A compound that can exist by itself

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Drill Convert 1) 23 cm/ms to km/ns
2) 56 mg/nL to kg/ML
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Review Collect Drill HW
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Are there any questions on previous material?
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Atomic Mass

• The weighted average mass of all the isotopes of
  an element
• average of relative abundance x mass number for
  each isotope

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Ion

• Charged Particle
• Cl-1

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Polyatomic Ion

• A group of atoms chemically combined that
  together has a charge
• SO4-2 or NO3-1

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Chemical Formula

• A formula that shows the number and kinds of
  atoms in a compound
• CaCO3

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Binary Compound

• A compound made up of two elements in any ratio
• NaCl
• Mg3P2

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Atomic Structure

• List describe the three subatomic particles

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Atomic Structure

• Fill in the Chart
• Isotope protons neutrons electrons
• U-235 - - -
• - 56 80 -
• - - 14 13

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Determine the number of of atoms in each compound
C6H12O6 NaNO3 H3PO4 Al2(SO4)3
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Diatomic Molecule

• Two atoms of the same element that are chemically
  combined
• Cl2, F2, O2

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Molecular Formula

• A formula that shows the number and kinds of
  atoms in a molecule
• C6H12O6

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Calculate the atomic mass of the element made up
of the following isotopes99.50 H-10.30
H-20.20 H-3
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Calculate the atomic mass of the element made up
of the following isotopes5.0 Pu-242, 5.0
Pu-24380.0 Pu-244, 10.0 Pu-245