Radioactive Substances Quiz Questions
15 Questions
| Total Attempts: 42
Settings
.
Questions and Answers
- 1.
![The nucleus of a particular form of carbon (chemical symbolC) contains 6 protons and 7 neutrons. Which of the following isthe correct way to represent it? - ProProfs]( "The nucleus of a particular form of carbon (chemical symbolC) contains 6 protons and 7 neutrons. Which of the following isthe correct way to represent it?")
The nucleus of a particular form of carbon (chemical symbolC) contains 6 protons and 7 neutrons. Which of the following isthe correct way to represent it?- A.
A
- B.
B
- C.
C
- D.
D
- 2.
![A particular nuclide of iron (chemical symbol Fe) is representedas follows: - ProProfs]( "A particular nuclide of iron (chemical symbol Fe) is representedas follows:")
A particular nuclide of iron (chemical symbol Fe) is representedas follows:- A.
56 neutrons
- B.
26 electrons
- C.
26 neutrons
- D.
26 protons
- 3.
![How many neutrons does this nuclide have? - ProProfs]( "How many neutrons does this nuclide have?")
How many neutrons does this nuclide have? - 4.
![Which symbol represents a beta particle? - ProProfs]( "Which symbol represents a beta particle?")
Which symbol represents a beta particle?- A.
A
- B.
B
- C.
C
- D.
D
- 5.
![Which symbol could represent an alpha particle? - ProProfs]( "Which symbol could represent an alpha particle?")
Which symbol could represent an alpha particle?- A.
A
- B.
B
- C.
C
- D.
D
- 6.
![A radioactive nuclide X decays according to this equation: - ProProfs]( "A radioactive nuclide X decays according to this equation:")
A radioactive nuclide X decays according to this equation:- A.
A
- B.
B
- C.
C
- D.
D
- 7.A radioactive sample contains 8000 undecayed atoms. It hasa half-life of 4 days. What will be the number of undecayedatoms remaining after 12 days?
- 8.
![The graph shows the pattern of decay of a radioactive substance.What is the half-life of the substance? - ProProfs]( "The graph shows the pattern of decay of a radioactive substance.What is the half-life of the substance?")
The graph shows the pattern of decay of a radioactive substance.What is the half-life of the substance? - 9.
![The graph bellow shows the amount of undecayed material in a sample of a radioactive substance as it decayed. When the material had decayed to a very low level, the detector still recorded background radiation.From the graph, determine the background count rate. - ProProfs]( "The graph bellow shows the amount of undecayed material in a sample of a radioactive substance as it decayed. When the material had decayed to a very low level, the detector still recorded background radiation.From the graph, determine the background count rate.")
The graph bellow shows the amount of undecayed material in a sample of a radioactive substance as it decayed. When the material had decayed to a very low level, the detector still recorded background radiation.From the graph, determine the background count rate. - 10.
![The graph bellow shows the amount of undecayed material in a sample of a radioactive substance as it decayed. When the material had decayed to a very low level, the detector still recorded background radiation.Determine the initial count rate due to the radioactive substance by calculating:initial count rate - background count rate - ProProfs]( "The graph bellow shows the amount of undecayed material in a sample of a radioactive substance as it decayed. When the material had decayed to a very low level, the detector still recorded background radiation.Determine the initial count rate due to the radioactive substance by calculating:initial count rate - background count rate")
The graph bellow shows the amount of undecayed material in a sample of a radioactive substance as it decayed. When the material had decayed to a very low level, the detector still recorded background radiation.Determine the initial count rate due to the radioactive substance by calculating:initial count rate - background count rate - 11.Which part of the atom contains most of its mass?
- A.
Shells
- B.
Orbits
- C.
Nucleus
- D.
Neutron
- 12.
![The diagram shows the paths of some alpha particles as they approached a nucleus of a gold atom.Explain why the alpha particle (1) shown was back-scattered. - ProProfs]( "The diagram shows the paths of some alpha particles as they approached a nucleus of a gold atom.Explain why the alpha particle (1) shown was back-scattered.")
The diagram shows the paths of some alpha particles as they approached a nucleus of a gold atom.Explain why the alpha particle (1) shown was back-scattered.- A.
It's pushed back repelled by the nucleus when it passes by very near.
- B.
It's pushed back attracted by the nucleus when it passes by very near.
- C.
It's pushed back repelled by the nucleus when it passes by far away.
- D.
It's pushed back attracted by the nucleus when it passes by far away.
- 13.
![The diagram shows the paths of some alpha particles as they approached a nucleus of a gold atom.Explain why the alpha particle (2) shown was undeflected as it passed the gold nucleus. - ProProfs]( "The diagram shows the paths of some alpha particles as they approached a nucleus of a gold atom.Explain why the alpha particle (2) shown was undeflected as it passed the gold nucleus.")
The diagram shows the paths of some alpha particles as they approached a nucleus of a gold atom.Explain why the alpha particle (2) shown was undeflected as it passed the gold nucleus.- A.
They have unlike charges.
- B.
It's too close to the nucleus.
- C.
They have like charges but it's far away from the nucleus.
- D.
All alpha particles are deflected.
Back to top