| Concept | Formula | Symbol Meaning | Units | | :--- | :--- | :--- | :--- | | | ( Q = m \times c \times \Delta T ) | Q = heat energy (J), c = specific heat capacity, ΔT = temp change | J | | Radioactive Decay Law | ( N(t) = N_0 \times e^-\lambda t ) | N(t) = remaining nuclei, N0 = initial nuclei, λ = decay constant | | | Half-Life | ( t_1/2 = \frac\ln 2\lambda ) | t½ = half-life, λ = decay constant | s, years |
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