Short answerEasy1 mark
10(c)
An atomic nucleus A is composed of 84 protons and 128 neutrons. The nucleus. A emits an alpha particle and is transformed into a nucleus B.
What is the composition of B ?
Topic: Nuclear physics / radioactivity
Previous-year question practice database
Answer
Exam answer
After the emission of an alpha particle from A, the resulting nucleus B has 2 protons and 2 neutrons less than the part nucleus (i.e., A), therefore, the nucleus B has : No. of proton = 82 No of neutron = 126
More from Radioactivity
An atom of lithium contains 3 electrons, 3 protons and 4 neutrons. Its mass number is:
(a) 3
(b) 4
(c) 7
(d) 102026............... radiation deviates minimum in a magnetic field [Alpha / Beta].2026Give two differences between nuclear fission and nuclear fusion.2026Which element is used in the lining of the special aprons worn by workers in nuclear power plants?2026Why is this element preferred?2026Name the type of nuclear radiation emitted by ²⁴₁₁Na.2026