You are here:

The Radioactive Decay Rate Calculator will calculate the:

- Decay rate of a radioactive sample when the initial number of nuclei and half-life are known

The radioactive decay rate as a function of time R(t) is Bq [Becquerel] |

Radioactive decay rate as a function of time calculation |
---|

R(t) = ∙ Nln 2/T_{1/2}_{0} ∙ e^{-ln 2/T1/2 ∙ t}R(t) = ∙ / ∙ e^{-/ ∙ }R(t) = ∙ ∙ e^{- ∙ }R(t) = ∙ ∙ e^{}R(t) = ∙ ∙ R(t) = |

Radioactive Decay Rate Calculator Input Values |

Initial number of atomic nuclei (N_{0}) |

Half-life of radioactive element (T 1/2) s [second] |

Time elapsed since the beginning of process (t) s [second] |

Please note that the formula for each calculation along with detailed calculations are available below. As you enter the specific factors of each radioactive decay rate calculation, the Radioactive Decay Rate Calculator will automatically calculate the results and update the Physics formula elements with each element of the radioactive decay rate calculation. You can then email or print this radioactive decay rate calculation as required for later use.

We hope you found the Radioactive Decay Rate Calculator useful with your Physics revision, if you did, we kindly request that you rate this Physics calculator and, if you have time, share to your favourite social network. This allows us to allocate future resource and keep these Physics calculators and educational material free for all to use across the globe. We believe everyone should have free access to Physics educational material, by sharing you help us reach all Physics students and those interested in Physics across the globe.

**Please provide a rating**, it takes seconds and helps us to keep this resource free for all to use

R(t) = *ln 2**/**T*_{1/2} ∙ N_{0} ∙ e^{-ln 2/T1/2 ∙ t}

R(t) = R_{0} ∙ e^{-λ ∙ t}

= λ∙N_{0} ∙ e^{-λ ∙ t}

=*ln 2**/**T*_{1/2} ∙ N_{0} ∙e^{-ln 2/T1/2 ∙ t}

= λ∙N

=

The following Physics tutorials are provided within the Nucleus Physics section of our Free Physics Tutorials. Each Nucleus Physics tutorial includes detailed Nucleus Physics formula and example of how to calculate and resolve specific Nucleus Physics questions and problems. At the end of each Nucleus Physics tutorial you will find Nucleus Physics revision questions with a hidden answer that reveals when clicked. This allows you to learn about Nucleus Physics and test your knowledge of Physics by answering the test questions on Nucleus Physics.

You may also find the following Physics calculators useful.

- Lever Force Calculator
- Magnetic Field Inside A Long Stretched Current Carrying Wire Calculator
- Capacitance Of A Circular Disk Calculator
- Coil Inductance Calculator
- Mean Effective Pressure Calculator
- Energy Decay As A Function Of Time In Damped Oscillations Calculator
- Radar Doppler Effect Calculator
- Jeans Mass Calculator
- Lc Resonance Calculator
- Electric Motor Efficiency Calculator
- True Wind Speed And Direction Calculator
- Temperature Of Primordial Universe Calculator
- Radiation Black Body Calculator
- Density Of Sand Calculator
- Dc Motor Speed Calculator
- Electrostatic Energy Of A Uniformly Charged Sphere Calculator
- Transverse Strength Calculator
- Velocity Calculator In Relativistic Events
- Magnetic Field Inside A Solenoid Calculator
- Carnot Engine Efficiency Calculator