Using Data Tables
When presented with a question that is related to a data table, read the title of the table to see what type of data it contains. Then look at the headings of the columns and rows to see how the data are organized. The table below lists properties for subatomic particles. There is a row for each particle and a column for each property. Read the question to find out which data you will need to answer the question. In this case, you will need the data on relative charge.
Particle |
Symbol |
Relative Charge |
Relative Mass (proton = 1) |
---|---|---|---|
Electron |
e− |
1- |
|
Proton |
p+ |
1+ |
1 |
Neutron |
n |
0 |
1 |
Which of the following statements is true?
The charge on a proton is larger than the charge on an electron.
The charge on a proton is smaller than the charge on an electron.
The charge on a proton is identical to the charge on an electron
The charge on a proton is equal in size but opposite to the charge on an electron.
A proton is a neutral particle.
(Answer: D)
Choose the letter that best answers the question or completes the statement.
J. J. Thomson demonstrated that electrons
have a negative electric charge.
have a positive electric charge.
are repelled by a positively charged object.
are attracted to a negatively charged object.
do not have an electric charge.
According to Dalton's atomic theory, an atom is
made of smaller particles.
a particle with a positive charge.
the smallest particle of an element.
in constant motion.
a particle with a negative charge.
Electrons in the first energy level of an atom
have no energy.
have the lowest possible energy.
have the highest possible energy.
are in an excited state.
are in an unstable state.
Most alpha particles pass through a thin layer of gold without deflection because gold atoms
are filled with positively charged matter.
have no overall charge.
have a negatively charged nucleus.
do not have a nucleus.
have a dense nucleus surrounded by space.
Use the data table to answer Question 5.
Property |
Oxygen-16 |
Oxygen-18 |
---|---|---|
Protons |
8 |
8 |
Neutrons |
8 |
10 |
Electrons |
8 |
8 |
Percentage in nature |
99.757 |
0.205 |
What is the mass number of oxygen-18?
8
10
16
18
0.205
An electron configuration describes
regions of space around the nucleus of an atom.
possible energies that an electron can have.
the arrangement of electrons in an atom.
the emission of light from an excited atom.
the number of possible orbitals in an atom.