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In which of the following nuclear reactions is only gamma radiation released?


A) In which of the following nuclear reactions is only gamma radiation released?   A)    B)    C)    D)    E) All of these reactions probably release gamma radiation
B) In which of the following nuclear reactions is only gamma radiation released?   A)    B)    C)    D)    E) All of these reactions probably release gamma radiation
C) In which of the following nuclear reactions is only gamma radiation released?   A)    B)    C)    D)    E) All of these reactions probably release gamma radiation
D) In which of the following nuclear reactions is only gamma radiation released?   A)    B)    C)    D)    E) All of these reactions probably release gamma radiation
E) All of these reactions probably release gamma radiation

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Radioactive isotopes are


A) very stable isotopes.
B) highly chemically reactive.
C) unstable isotopes.
D) charged species.
E) unusually nonreactive.

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Which of the following choices describes an acute dose of radiation?


A) the dose that an x-ray technician receives over the course of her career
B) the dose that a scientist receives while working with radioactive materials for a multiyear research project
C) the annual dose that a pilot is expose to
D) the dose that is received by handling a highly radioactive source
E) the annual dose that we all receive as a result of background radiation

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_____ have a negative charge.


A) Protons
B) Neutrons
C) Electrons
D) Protons and neutrons
E) Protons, neutrons, and electrons

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Which atom is in its ground state? Which atom is in its ground state?   A)  H B)  He C)  H and He D)  Li E)  All of the above


A) H
B) He
C) H and He
D) Li
E) All of the above

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Micro- and macronutrients are


A) equally distributed throughout the body.
B) all metals and metalloids.
C) obtained through the diet.
D) only found in the first three periods of the periodic table.
E) all required in quantities of more than 100 mg per day.

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Which of the following statements about isotopes is false?


A) Isotopes are atoms with same number of protons but different numbers of neutrons.
B) Most elements naturally have more than one isotope.
C) Isotopes are atoms with the same atomic number but different mass numbers.
D) An isotope with more neutrons will have a greater mass than an isotope with fewer neutrons.
E) All of the above are true.

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According to the current model of the atom, the part of the diagram labeled A is made up of According to the current model of the atom, the part of the diagram labeled A is made up of   A)  protons. B)  neutrons. C)  electrons. D)  protons and neutrons. E)  protons, neutrons, and electrons.


A) protons.
B) neutrons.
C) electrons.
D) protons and neutrons.
E) protons, neutrons, and electrons.

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How many electrons are in the valence shell of the ion represented by the energy diagram shown below? How many electrons are in the valence shell of the ion represented by the energy diagram shown below?   A)  8 B)  10 C)  12 D)  22 E)  0


A) 8
B) 10
C) 12
D) 22
E) 0

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Oxygen is a _______ and therefore _______ when it forms an ion.


A) metal; loses electrons
B) metal; gains electrons
C) nonmetal; loses electrons
D) nonmetal; gains electrons
E) metalloid; loses electrons

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What is the atomic number of element X? What is the atomic number of element X?   A)  25 B)  56 C)  81 D)  31 E)  None of the above values is the atomic number.


A) 25
B) 56
C) 81
D) 31
E) None of the above values is the atomic number.

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Which of the following elements has a mass number of 35 and an atomic number of 17?


A) chlorine
B) bromine
C) argon
D) tellurium
E) sulfur-35

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The number of protons is equal to the _____ in a neutral atom.


A) number of neutrons
B) number of electrons
C) mass number
D) average atomic mass
E) group number

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Which of the following is NOT a building block element?


A) C
B) H
C) O
D) N
E) These are all building block elements.

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The most common nutritional deficiency in the world is_____.


A) scurvy
B) anemia
C) kwashiorkor
D) rickets
E) pellagra

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Which of the following indicates that an alpha particle has been released during radioactive decay of an atom?


A) The identity of the atom does not change.
B) The mass number of the atom decreases by 4.
C) The atomic number of the atom increases by 1
D) The atomic number of the atom decreases by 1.
E) The atomic number of the atom decreases by 4.

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Nonmetals typically ______ and metals typically ______.


A) donate electrons; accept electrons
B) accept electrons; donate electrons
C) donate protons; accept protons
D) accept protons; donate protons
E) donate neutrons; accept neutrons

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Which of the following groups of elements forms anions?


A) noble gases
B) transition metals
C) alkaline metals
D) alkali earth metals
E) halogens

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Which of the following is NOT a symptom of iron deficiency?


A) dizziness
B) shortness of breath
C) frequent urination
D) headaches
E) fatigue

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How is a beta particle different from an electron?


A) They are the same.
B) A beta particle is higher energy than a regular electron
C) A regular electron is higher energy than a beta particle.
D) A beta particle is positively charged.
E) A beta particle is positively charged and higher in energy than a regular electron.

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