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Back to Basics
Does it Really Matter
I am Periodically Sm Ar T Er Th An U
James Bond
Pot Pouri
100
The number of grams in a kilogram
What is 1000
100
Fe
What is Iron
100
The rows of the periodic table.
What are the periods?
100
The name of Al 2 S 3. (The 2 and the 3 are subscripts.)
What is Aluminum Sulfide?
100
Silver Tarnishing, Food rotting, Milk spoiling but not water evaporating.
What is a chemical change?
200
The conversion of 0.00752 in scientific notation
What is 7.52 X 10 to the -3
200
In this model, electrons moved in a fixed path around the nucleus.
What is Bohr's Model?
200
The elements generally found on the “staircase” between the metals and nonmetals.
What is a semi metals or metalloids?
200
Atoms are bonded by the transfer of electrons from a metal to a nonmetal in this type of bond.
What is an Ionic Bond?
200
Most of the volume of an atom is taken up with these subatomic particles.
What are electrons?
300
Mass per unit volume
What is density?
300
This subatomic particle that has a mass of 1 amu and is neutral
What is a neutron?
300
The group that has 6 electrons in its outer shell that would form an anion with a -2 charge.
What is a Group 16 element?
300
The formula for the compound ammonium oxide?
What is NH4 (in parentheses) 2, O.
300
O2, N2, Cl2, H2
What are diatomic molecules?
400
The type of change when water evaporates.
What is a physical change?
400
The idea that elements combine in simple whole number ratios in compounds.
What is the Law of Multiple Proportions?
400
This trend increases as you go down a group (with increasing atomic number) and decreases as you go across a period (with increasing atomic number)
What is Atomic Radii?
400
The formula for the compound tetraphosphorus decasulfide
What is P with a subscript 4, S with a subscript 10.
400
The mass number is different but not the number of protons in these elements.
What is an isotope?
500
In a closed container, the mass of the reactants equals the mass of the products after a chemical reaction.
What is Law of Conservation of Mass?
500
In the quantum mechanical model, the predicted area in space where electrons are found.
What is Shrodinger's Model, the Wave Mechanical Model or The Quantum Wave model?
500
The ionization energy of the elements in this group is higher than that of any element in corresponding rows.
What are the noble gasses or Group 18 elements?
500
This bond has shared electrons that are shared unequally.
What is polar covalent bond?
500
The experimenter that found that Cathode Rays deflected when passed over a magnet.
Who is Thompson?