Matter
Energy
The Atom
Nuclear/Gases
Periodic Table
200
What is the term for a substance that cannot be separated into simpler substances by chemical means?
Atoms
200
What is the heat of fusion of water?
334 J/g
200
What are the three subatomic particles of an atom?
protons, neutrons, electrons
200
What is the ideal gas law?
(P1V1)/(T1) = (P2V2)/(T2)
200
Which period is Sodium in?
Period 3
400
These are the two types of pure substances
Elements and Compounds
400
Which heat equation would you use for a question that involves changing temperature?
q = mcΔT
400
Define isotope
An isotope of an atom has the SAME number of protons and a different number of neutrons.
400
Which decay particle has the largest mass?
alpha particles
400
How many groups are there on the Periodic Table?
18
600
Evaporation is a type of ____________ change
Physical change
600
Explain what happens to the kinetic energy as a phase change is happening.
Kinetic energy stays the same
600
What are the Rutherford Gold Foil Experiment's two conclusions.
Discovered that the atom was mostly empty space and had a small, dense, positive center called the nucleus.
600
If the temperature of a gas increases, what happens to its volume?
It also increases.
600
Across a period (left to right), what trend is seen in electronegativity
It increases
800
This is an example of a _______________________.
Heterogeneous mixture
800
Which heat constant would you use when calculating the heat for a condensation of water vapor to liquid water?
Heat of vaporization.
800
DOUBLE POINTS!
What happens when an atom:
1. gains a neutron
2. gains an electron
3. gains a proton
1. forms an isotope
2. forms an anion
3. forms a new element
800
What fraction of a radioisotope remains after 10 days if its half-life is 2 days.
1/32
800
Explain why non-metals have high ionization energy
Non-metals prefer to hold on to their valence electrons
1000
Explain the difference between a compound and a mixture.
A compound is a substance that is formed when two elements chemically combine in a fixed ratio.
A mixture is formed when substances are physically combined in variable ratios.
1000
Describe the difference between potential and kinetic energy in a heat curve.
Kinetic energy changes while in one phase of matter, but remains constant during a phase change.
Potential energy remains the same during one phase of matter but changes during a phase change.
1000
What information does the Bohr model of the atom tell us?
The number of protons and neutrons, as well as the number of electrons and how they are distributed
1000
Describe the process of nuclear fusion and where it naturally occurs.
When two smaller nuclei combine to form a larger nucleus and produce a lot of energy. It occurs in the sun
1000
Explain in terms of electron shells why atomic radius increases as you go down a group
Each new shell is further away from the nucleus. This increased distance means that the outermost electrons are located farther from the nucleus.