Show:
Matter and Change
Measurements
Atoms
Arrangement of Electrons
Misc.
100
solid carbon dioxide subliming into a gas wax melting paper ripping water evaporating These are all examples of this type of change.
What is a physical change?
100
The variable that the experimenter manipulates during an experiment and is plotted on the x-axis.
What is the independent variable?
100
This scientist discovered the electron using a cathode ray tube experiment.
Who is j.j Thompson?
100
X-rays ultraviolet rays infrared light microwaves visible light These are all examples of this.
What is the electromagnetic spectrum?
100
Sodium Potassium Argon Magnesium These are all examples of this type of matter.
What are elements?
200
Silver tarnishing Iron rusting Cake baking logs burning These are all examples of this type of change.
What is a chemical change?
200
The SI unit for temperature.
What is the Kelvin?
200
This scientist discovered the nucleus of an atom by conducting a gold foil experiment.
Who is Ernest Rutherford?
200
The lowest energy state of an atom.
What is ground state?
200
sodium chloride NaCl magnesium oxide MgO water H2O These are examples of this type of matter.
What are compounds?
300
A state of matter that has a definite volume but an indefinite shape.
What is the liquid state.
300
These are the units of density.
What is g/ml or g/cm3?
300
In 1808, an English school teacher developed an atomic theory in which he reasoned that elements were composed of atoms and that atoms cannot be subdivided, created, or destroyed.
Who is John Dalton?
300
Excited hydrogen atoms emit a pinkish glow. When the visible light is passed through a prism, is is separated into specific wavelengths which show up as bright lines.
What is line-emission spectrum?
300
Write the electron configuration for Sodium.
What is 1s22s22p63s1?
400
A mixture that has been physically combined and the parts are not uniform throughout.
What is a heterogeneous mixture?
400
A student measures the mass of a beaker filled with corn oil. The mass reading is 215.6g. The mass of the empty beaker is 110.4 g. The volume of corn oil is 114 cm3. This is the density of the corn oil. (round using sig fig rules)
What is 0.923 g/cm3?
400
These are the number of protons, electrons, and neutrons in copper-63.
What is 29p, 29e, 34n?
400
A quantum number, symbolized as l, indicates the shape of the orbital. Daily Double: Name the four orbital types.
What is angular momentum quantum number?
400
These two elements are exceptions to the electron configuration rules.
What are chromium and copper?
500
density melting point boiling point ability to conduct electricity These are all examples of this type of property.
What is intensive properties?
500
A student measures the mass and volume of a substance and calculates its density as 1.40 g/ml. The accepted value of the density is 1.30 g/ml. This is the student's percent error.
What is 7.7%?
500
Three isotopes of Argon occur in nature: Argon-36, Argon-38, and Argon-40. This is the average atomic mass of Argon given the following relative atomic masses and abundances of each of the isotopes: argon-36 (35.97 amu; 0.337%), argon-38 (37.96 amu; 0.063%), and argon-40 (39.96 amu; 99.60%)
What is 39.94 amu?
500
Write the noble gas notation for tin. State the number of unpaired electrons.
What is (Kr)4d105s25p2, 2?
500
Write a nuclear symbol for an isotope that has 56 electrons and 82 neutrons.
What is 138 ? Ba 56