Q1:
Which decay process is represented by the following equation?
- A Positron emission
- B Electron emission
- C Alpha emission
- D Gamma emission
- E Electron capture
Q2:
Which of the following equations is correct for atomic transmutation via decay?
- A
- B
- C
- D
- E
Q3:
Which subatomic particle (A) is emitted when the following unstable isotope of fluorine decomposes?
- A Neutron
- B Quark
- C Electron
- D Positron
- E Proton
Q4:
Using the equation that follows, which type of ionizing radiation, , was used to bombard beryllium-9 and aid James Chadwick in the discovery of the neutron in 1932?
- A Positrons
- B rays
- C particles
- D particles
Q5:
Which of the following equations represents the beta decay of neptunium-239?
- A
- B
- C
- D
- E
Q6:
The ratio between neutrons and protons in an atom of vanadium-51, , is approximately 1.22 : 1.
As the number of protons in an atom increases, how does the ratio between neutrons and protons change?
- A The ratio increases until it reaches that in uranium and then decreases.
- B The ratio decreases until it reaches that in uranium and then increases.
- C The ratio increases.
- D The ratio decreases.
- E The ratio increases until it reaches that in uranium and then flattens out.
Q7:
Uranium-238 can produce a thorium isotope when it emits an alpha particle. Which of the following equations correctly describes this transmutation process?
- A
- B
- C
- D
- E
Q8:
What is the term used when an atom of one element is converted into an atom of another element?
- A Transmutation
- B Permutation
- C Alchemy
- D Transfiguration
- E Transcription
Q9:
Which of the following equations represents the α decay of radium-226?
- A
- B
- C
- D
- E
Q10:
Uranium-238, , is the most common isotope of uranium. Which of the following statements best describes elements that are classified as transuranium?
- A All of the actinoids on either side of uranium
- B All of the lanthanides and actinoids
- C Elements that are in the same group in the periodic table as uranium
- D All of the elements in period 7 of the periodic table
- E Elements that have an atomic number greater than 92
Q11:
The strong nuclear force is a very powerful attractive force that acts on subatomic particles that are close together. Which of the following pairs are affected by this great force?
- A A proton and a proton
- B A proton and a neutron
- C A neutron and a neutron
- D All of the answers are correct.
Q12:
Which of the following is not correct of the strong nuclear force?
- A It does not depend on the charge of nucleons.
- B It is a great attraction force.
- C It is observed between a proton and an electron.
- D It is a short-range force.
Q13:
Which of the following could be responsible for nuclear stability?
- A Strong electrostatic repulsion
- B Strong electrostatic attraction
- C Strong nuclear force
- D None of the answers are correct.
Q14:
According to the following figure which represents a series of nuclear emissions, determine the type of particles emitted in 1, 2, 3, and 4 respectively.
- A Alpha, alpha, beta, and beta particles
- B Alpha, beta, beta, and beta particles
- C Alpha, beta, alpha, and beta particles
- D Alpha, beta, beta, and alpha particles
Q15:
Which of the following is not correct of nuclear reactions and chemical reactions?
- A Nuclear reactions are accompanied by greater amounts of energy compared to those released by chemical reactions.
- B Nuclear reactions are accompanied by the transformation of the elements into other ones or to their isotopes, which does not occur in chemical reactions.
- C Isotopes of the same elements give the same products in nuclear reactions but different products in chemical reactions.
- D Nuclear reactions occur between the nuclei of the elements through the nucleons, while chemical reactions occur between the valence electrons.
Q16:
Determine what is represented by X in the following nuclear equation:
- A
- B
- C
- D
Q17:
Consider the following artificial transmutation:
Which of the following pairs can and be respectively?
- A Deuteron, gamma ray
- B Alpha particle, proton
- C Proton, alpha particle
- D Beta particle, deuteron
Q18:
The figure shows the bombarding of the nucleus of uranium with a neutron to form different products. Why does this process lead to a serial reaction?
- A Because the produced electrons act as new projectiles (bombs) which make new similar reactions
- B Because the produced energy acts as new projectiles (bombs) which make new similar reactions
- C Because the produced neutrons act as new projectiles (bombs) which make new similar reactions
- D Because the produced protons act as new projectiles (bombs) which make new similar reactions
Q19:
Which of the following reactions emits the highest amount of energy?
- A
- B
- C
- D
Q20:
Which of the following is correct about nuclear reactions?
- A They are accompanied by the release of a huge amount of energy.
- B In most cases, there is a transformation of an element to another one or its isotope
- C They occur between the nuclei of the elements through the nucleons of the nucleus.
- D All of the answers are correct.
Q21:
Which of the following can indicate higher nuclear stability?
- A The increase of the number of electrons compared to the number of neutrons
- B The increase in the number of electrons compared to the number of nucleons
- C The increase of the number of electrons compared to the number of protons
- D The increase of the number of neutrons compared to the number of protons
Q22:
Nuclear transformation reactions are nuclear reactions in which the nucleus of an element, called a target, is bombarded with an accelerated particle, called a projectile or bomb, to transform the target into a new nucleus having new chemical and physical properties. Which of the following is not an example of the projectiles or bombs used in nuclear transformation reactions?
- A Deuteron
- B Proton
- C Neutron
- D Electron
Q23:
Which of the following isotopes have nuclei that reach stability by converting a neutron into a proton?
- A Isotopes that exist at the right side of the belt of stability
- B Isotopes that exist at the left side of the belt of stability
- C Isotopes that exist in the middle of the belt of stability
- D Isotopes that exist above the belt of stability
Q24:
Which of the following scientists discovered the first artificial nuclear transformation?
- A Einstein
- B Gell-Mann
- C Rutherford
- D Becquerel
Q25:
Which of the following ratios exists in stable light nuclei?
- A 1.53
- B 1.00
- C 1.29
- D 0.85
