A)
B)
C)
D)
E) All of these reactions probably release gamma radiation
Correct Answer
verified
Multiple Choice
A) very stable isotopes.
B) highly chemically reactive.
C) unstable isotopes.
D) charged species.
E) unusually nonreactive.
Correct Answer
verified
Multiple Choice
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
Correct Answer
verified
Multiple Choice
A) Protons
B) Neutrons
C) Electrons
D) Protons and neutrons
E) Protons, neutrons, and electrons
Correct Answer
verified
Multiple Choice
A) H
B) He
C) H and He
D) Li
E) All of the above
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
A) protons.
B) neutrons.
C) electrons.
D) protons and neutrons.
E) protons, neutrons, and electrons.
Correct Answer
verified
Multiple Choice
A) 8
B) 10
C) 12
D) 22
E) 0
Correct Answer
verified
Multiple Choice
A) metal; loses electrons
B) metal; gains electrons
C) nonmetal; loses electrons
D) nonmetal; gains electrons
E) metalloid; loses electrons
Correct Answer
verified
Multiple Choice
A) 25
B) 56
C) 81
D) 31
E) None of the above values is the atomic number.
Correct Answer
verified
Multiple Choice
A) chlorine
B) bromine
C) argon
D) tellurium
E) sulfur-35
Correct Answer
verified
Multiple Choice
A) number of neutrons
B) number of electrons
C) mass number
D) average atomic mass
E) group number
Correct Answer
verified
Multiple Choice
A) C
B) H
C) O
D) N
E) These are all building block elements.
Correct Answer
verified
Multiple Choice
A) scurvy
B) anemia
C) kwashiorkor
D) rickets
E) pellagra
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
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
Correct Answer
verified
Multiple Choice
A) noble gases
B) transition metals
C) alkaline metals
D) alkali earth metals
E) halogens
Correct Answer
verified
Multiple Choice
A) dizziness
B) shortness of breath
C) frequent urination
D) headaches
E) fatigue
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
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