Atomic and Nuclear Physics
GCE Physics

( a ) ( i ) What is meant by the term 'radioactive decay'? ( ii ) State TWO properties of alpha (α) particles. ( b ) A radioactive isotope has a half-life of 8 days. A freshly prepared sample of the i…

( a ) ( i ) Distinguish between nuclear fission and nuclear fusion. ( ii ) State ONE condition necessary for nuclear fusion to occur. ( b ) Consider the following nuclear reaction: ²³⁵₉₂U + ¹₀n → ¹⁴¹₅…

A radioactive element has a half-life of 8 days. What fraction of the original sample remains after 32 days?

In the nuclear reaction $^{235}_{92}U + ^{1}_{0}n \rightarrow ^{141}_{56}Ba + ^{92}_{36}Kr + x^{1}_{0}n$, the value of x is

When an alpha particle is emitted from a radioactive nucleus, the atomic number of the daughter nucleus

Which of the following particles has the greatest penetrating power?

A radioactive source has an initial activity of 6400 disintegrations per second. If the half-life is 5 years, what will be the activity after 20 years?

Which of the following statements correctly describes isotopes?

In a nuclear reaction, the mass defect of a nucleus is $5.0 \times 10^{-29}$ kg. The binding energy of the nucleus is approximately [Speed of light $c = 3.0 \times 10^{8}$ m/s]

The energy released when a nucleus is completely separated into its constituent nucleons is called

The nucleus of an atom contains 92 protons and 146 neutrons. What is the nucleon number of this atom?