(a) Complete [Table 6.1] to show the masses (in terms of the unified atomic mass unit u) and charges (in terms of the elementary charge e) of α, β⁺ and β⁻ particles.

1. (a)Complete Table 6.1 to show the masses (in terms of the unified atomic mass unit u) and charges (in terms of the elementary charge e) of α, β⁺ and β⁻ particles.[4]
2. (b)(i)Carbon-14 is radioactive and decays by emission of β⁻ particles. Nuclei do not contain β⁻ particles. Explain the origin of the β⁻ particle that is emitted from the nucleus during β⁻ decay.[1]
3. (b)(ii)State the change in the quark composition of a carbon-14 nucleus when it emits a β⁻ particle.[1]
4. (b)(iii)Suggest why the β⁻ particles are emitted with a range of different energies.[2]