Physics Chapter 16
The half-life of an isotope is 1 day. At the end of 2 days the amount that remains is...
1/4
The mass of an atomic nucleon is nearly...
2000 times the mas of an electron
It's impossible for a hydrogen atom to emit an alpha particle.
True
Deuterium and tritium are both...
both forms of hydrogen and isotopes of the same element
A nuclear process that has relatively few radioactive by-products is...
fusion
A proton has the greatest mass in the nucleus of...
hydrogen
Detonation of a fusion type hydrogen bomb is stated by...
igniting a small fission bomb
Generally speaking, the larger a nucleus is, the greater its...
instablility
If an alpha particle and a beta particle have the same energy, which particle will penetrate farther into an object?
beta particle
In both fission and fusion, mass...
converts kinetic energy
In the fissioning of uranium, a chain reaction is caused by...
ejected neutrons
Between nuclear fission and nuclear fusion, radioactive by-products are more characteristic of nuclear...
fission
Which experiences the least electrical force in an electric field?
gamma ray
Which radiation has no electric charge associated with it?
gamma rays
A chain reaction grows when the average number of liberated neutrons which go on to cause further fissions is...
greater than 1
X-rays may be regarded as...
high frequency radio waves
A nucleon has the least mass in the nucleus of...
iron
The nucleus with the most tightly bound nucleons is...
iron
When 2 light atoms fuse together, mass...
is converted to kinetic energy of neutrons
Uranium-235, Uranium-238 and Uranium-239 are different...
isotopes
In a mass spectrometer, a variety of singly-ionized atomic nuclei are directed into a magnetic field where they are deflected and strike a detecting screen. The particles to undergo the greatest and deflection are the particles with the...
least mass
Compared to the mass of a uranium nucleus before splitting, the pieces it splits into have...
less mass
In nuclear fission and nuclear fusion reactions, the amount of mass converted to energy of other forms is...
less than 1%
Different isotopes of an element have different numbers of...
neutrons
The nucleus with the greatest mass is...
plutonium
Detonation of a fission type atomic bomb is started by...
pressing together several small pieces or uranium
A nucleon is either...
proton or neutron
Electric forces within an atomic nucleus tend to...
push it apart
The half-lives of elements beyond uranium are too short for these elements to occur in natural deposits. But elements below uranium that have equally short half-lives do occur in natural deposits. This is because they are...
the products of uranium decay
