MN Physics Midterm Flashcards
T/F
The decay constant of a particular radionuclide increases as the amount of radionuclide decreases
False
T/F
A radionuclide is an atom with an unstable nucleus
True
T/F
The following are accepted nuclear forces:
Gravitational, elastic, strong, weak
False; Elastic should be E-M
T/F
Einstein was the first to describe an atom with orbital electrons
False
T/F
The energy released during beta-minus decay is shared between the beta particle and an antineutrino
True
T/F
An alpha particle is a hydrogen nucleus
False
T/F
A positron is a from of antimatter
True
T/F
The most powerful force acting within the nucleus is the gravitational force
False
T/F
Tc-99m is an isotope of Tc-99.
False; isotopes have the same Z number
T/F
The standard model of the atom is made up of quarks, leptons, and force carrier particles
True
T/F
After positron decay, the positron will combine with a neutron which will be converted into a proton
False
Isotopes have: A) the same A number B) the same Z number C) the same neutron number D) All E) A&B F) A&C
B) the same Z number
Isotones have: A) same A, different Z, different N B) different A, same Z, different N C) different A, different Z, same N D) none
C) different A, different Z, same N
Isobars have: A) same A, different Z, same N B) different A, same Z, different N C) same A, different Z, different N D) different A, different Z, same N
C) same A, different Z, different N
Isomers have: A) the same A number B) the same Z number C) the same neutron number D) All of the above
D) All of the above
Which are the considered to be force particles? A) quarks B) photons C) Gluons D) a and b E) b and c F) a, b, and c
E) b and c
In an endothermic reaction:
A) the Q value is less than 0, energy is required and rest mass increases
B) the Q value is greater than 0, energy is released, and the rest mass decreases
C) classic example is pair production with 1.02 MeV energy requirement
D) classic example is fission
E) both a and c
F) both b and d
E) both a and c
