Exam 10: Nuclear Physics

The number of neutrons in a deuteron is ______________.

Radioactive decay was discovered in 1896 by

Which type of hydrogen is referred to as "heavy hydrogen"?

The number of neutrons in a triton is ______________.

The primary function of a moderator in a nuclear reactor is to

Only four nuclides having an ______________ number of protons and an ______________ number of neutrons are stable.

The atomic number (Z)of an element is equal to the number of ______________ in one of its atoms.

Which of the following nuclides would be radioactive?

The symbol notation now used for elements was developed by

The half-life of ${ } _ { 43 } ^ { { } _ { 101 } } \mathrm { Tc }$ is 14 min.How many minutes would it take for the activity of a sample of this radionuclide to decrease from 1200 cpm to 150 cpm?

Which of the following is a transuranium element?

The half-life of ³H is 12 years.About how long does it take for 127/128 of a sample of that radionuclide to decay?

When ${ } _ { 92 } ^ { 238 } \mathrm { U }$ decays to ${ } _ { 90 } ^ { 234 } \mathrm { Th }$ ,a(n)______________ is emitted.

Defects in the subsequent offspring of the recipient of radiation are called ______________ effects.

When an alpha particle hits a ${ } _ { 19 } ^ { 39 } \mathrm {~K}$ Nucleus,one of the products is a proton.The other product is

Fusion reactors of the future are likely to use ______________ as fuel.

The symbol for the element whose atoms contain 28 protons is ______________.

Which of the following four elements is a neutron-absorbing material used in controlling nuclear reactors?

The diameter of an average atom is about

The symbolic notation for a beta particle is ______________.