Physics
What kind of change takes place in a nucleus when a β particle is emitted? Express it by an equation. State whether (a) atomic number, and (b) mass number are conserved in a radioactive β-decay?
Related Questions
How are γ radiations produced? Mention two common properties of the γ radiations and visible light.
(a) An atomic nucleus A is composed of 84 protons and 128 neutrons. The nucleus A emits an α-particle and is transformed into a nucleus B. What is the composition of B?
(b) The nucleus B emits a β-particle and is transformed into a nucleus C. What is the composition of C?
(c) What is the mass number of the nucleus A?
(d) Does the composition of nucleus C change if it emits the γ radiation?
State following four properties each of α, β and γ radiations — (a) nature, (b) charge, (c) mass, and (d) effect of electric field.
A certain nucleus A (mass number 238 and atomic number 92) is radioactive and becomes a nucleus B (mass number 234 and atomic number 90) by the emission of a particle.
(a) Name the particle emitted.
(b) Explain how you arrived at your answer.
(c) State the change in the form of a reaction.