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FORMULA CHAPTER

Chapter 12 – Radioactivity

ICSEClass 10Physics8 formulas
Complete ICSE Class 10 Chapter 12 Radioactivity formulas covering nuclear changes, mass number, atomic number and radioactive decay.
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1
{}^{\mathrm{A}}_{\mathrm{Z}}\mathrm{X}\rightarrow{}^{\mathrm{A}}_{\mathrm{Z+1}}\mathrm{Y}+{}^{0}_{-1}\mathrm{\beta}
2
{}^{\mathrm{A}}_{\mathrm{Z}}\mathrm{X}^{*}\rightarrow{}^{\mathrm{A}}_{\mathrm{Z}}\mathrm{X}+\mathrm{\gamma}
3
\mathrm{\Delta m}=\mathrm{Z}\mathrm{m_p}+(\mathrm{A}-\mathrm{Z})\mathrm{m_n}-\mathrm{M_N}
4
\mathrm{B}=\mathrm{\Delta m}\mathrm{c}^{2}
5
1 MeV = 1.6 × 10⁻¹³ J
6
1 u = 931 MeV / c²; energy equivalent = 931 MeV
7
\text{Binding energy per nucleon}=\frac{\mathrm{B}}{\mathrm{A}}
8
{}^{\mathrm{A}}_{\mathrm{Z}}\mathrm{X}\rightarrow{}^{\mathrm{A-4}}_{\mathrm{Z-2}}\mathrm{Y}+{}^{4}_{2}\mathrm{He}