Download Laws

Before we start, make sure each
group has a calculator, periodic
table, and a white board
No notes though
Choose Your Category
History
Atoms and the
Periodic Table
Atomic
Parts
Isotopes
Laws
Radiation
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
The Final Question
History - 100
• I proposed this as the model of the atom.
The Answer is JJ
Thomson
Back
History - 200
• I was known as the “Father of Modern
Chemistry”.
The Answer is Lavoisier
Back
History - 300
• I discovered the neutron.
The Answer is James Chadwick.
Back
History - 400
• I used the oil drop experiment to
determine the charge/mass of an electron.
The Answer is Millikan.
Back
History - 500
• I gave us the Law of the Conservation of
Mass.
The Answer is Lavoisier.
Back
Atoms and the Periodic Table 100
• This element has an atomic mass of 1.01?
The Answer is Hydrogen
Back
Atoms and the Periodic Table 200
• This element has 12 protons in its
nucleus?
The Answer is Magnesium.
Back
Double Jeopardy
Atoms and the Periodic Table 300
• Write the nuclear symbol of the element
with 24 protons and 28 neutrons.
•The Answer is
52
24
Cr
Back
Atoms and the Periodic Table 400
• What is the mass of an element with 25
protons, 25 electrons, and 30 neutrons?
The Answer is 55.
Back
Atoms and the Periodic Table 500
Complete the chart:
Isotope
Number of
Protons
Number of Number of
Electrons Neutrons
Selenium - 80
•The Answer is 34, 34, 46
Back
Atomic Parts - 100
• I am the center of an atom.
The Answer is the nucleus.
Back
Atomic Parts - 200
• When I change, the element changes?
The Answer is the proton.
Back
Atomic Parts - 300
• When I am lost, an ion is created.
The Answer is the electron.
Back
Atomic Parts - 400
• I change the atomic mass, but not the
atomic number.
The Answer is the neutron.
Back
Random Points
200
Atomic Parts - 500
• What subatomic particles have a mass
that impacts the mass of the atom?
The Answer is protons and
neutrons.
Back
Isotopes
- 100
• What do isotopes of the same element
differ in?
The Answer is neutrons.
Back
Double Jeopardy
Isotopes
- 200
• Calculate the average atomic mass for
carbon if its abundance in nature is 79.3%
carbon-12, 13.3% carbon-13, and 7.4%
carbon-14.
The Answer is 12.3 g/mol
Back
Isotopes
- 300
• One isotope of aluminum is aluminum-27.
The 27 refers to the ______________.
The Answer is mass (number).
Back
Isotopes
- 400
• The ____________________ of an
isotope is the time required for half the
nuclei in a sample of the isotope to
undergo radioactive decay.
The Answer is half-life
Back
Double Jeopardy
Isotopes
- 500
• What is the half-life of an isotope if 150 g
of a 600 g sample of the isotope remains
after 2.0 years?
•The Answer is 1.0 years.
Back
Laws
- 100
• The law that states that mass cannot be
created or destroyed in ordinary chemical
and physical changes.
The Answer is Law of
Conservation of Mass
Back
Laws
- 200
• The law that states that a chemical
compound always contains the same
elements in exactly the same proportions
by weight or mass.
The Answer is Law of
Definite Proportions
Back
Laws
- 300
• During a chemical reaction, a group
combines 5.00 grams of sodium and 7.72
grams of chlorine. The result of the
reaction was 12.72 grams of sodium
chloride. Which law does this support?
The Answer is Law of
Conservation of Mass
Back
Laws
- 400
• The law that states that when two
elements combine to form two or more
compounds, the mass of one element that
combines with a given mass of the other is
in ratio of small whole number.
The Answer is Law of
Multiple Proportions
Back
Laws
- 500
• Every molecule of octane, an important
component is gas, has eight carbon atoms
and eighteen hydrogen atoms. Which law
does this support?
The Answer is Law of
Definite Proportions
Back
Radiation
- 100
• We discovered Polonium and
Radium?
The Answer is Pierre
and Marie Curie
Back
Random Points
400
Radiation - 200
0
0
e+
e  2g
1
1
This formula shows the
___________________ of matter
The Answer is annihilation
Back
Radiation
- 300
• This type of radiation is a fast moving
electron?
The Answer is Beta.
Back
Radiation
- 400
• Curium-246 combines with carbon-12
to form nobelium-254 and four
neutrons. Is this fusion or fission?
The Answer is fusion
Back
Double Jeopardy
Radiation
- 500
• Fill in the blank, identify the radioactive
particle, and tell whether that particle was
emitted or captured.
222
0
At  _____  e
85
1
222
The Answer is
Rn beta emission
86
Back
The Final Question
• The final question has to deal with:
»Percent Composition
Make your wager and hand it to the teacher
Average Mass
• Carbon, hydrogen, and oxygen combine to
make glucose, C2H6O2. What percent by
mass do you have of each element?
And the Answer is:
• C = 38.7%
• H = 9.7%
• O = 51.6%