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www.radprocalculator.com/Decay.aspx

Radioactive Decay Useful for calculating today's activity for any radioactive isotope. You may also back decay sources to find out the original activity (or for any date), knowing the current activity. If the isotope that you wish to decay is not on the drop down list, check the 'not listed' check-box and manually enter the isotope name and its ...

www.hse2.ubc.ca/rad/Calc/calcframe.htm

Radioactive Decay Calculator ... Decay time (t) UBC Disposal Limits * Solid (kBq/kg) ** Liquid (kBq/l) *** Gaseous (kBq/m) * - Only the first 9 isotope have UBC disposal limits. Refer to your licence or contact your radiation safety office for the disposal limits of other isotopes.

www.miniwebtool.com/exponential-decay-calculator

About Exponential Decay Calculator . The online Exponential Decay Calculator is used to solve exponential decay problems. It will calculate any one of the values from the other three in the exponential decay model equation.

www.gigacalculator.com/calculators/half-life-calculator.php

This is the equation used in our half-life calculator as well. Half-Life formula. You can find the half-life of a radioactive element using the formula: where t 1/2 is the half-life of the particle, t is the elapsed time, N 0 is the quantity in the beginning, and N t is the quantity at time t. Exponential decay applications

www.calculator.net/half-life-calculator.html

This free half-life calculator can determine any of the values in the half-life formula given three of the four values. The calculator can also convert between half-life, mean lifetime, and decay constant given any one of the three values. Learn more about how the half-life formula is used, or explore hundreds of other math, finance, fitness, and health calculators.

www.easycalculation.com/chemistry/radioactive-decay.php

Radioactive Isotopes Decay Calculator. Online calculator that allows you to find out the radiation activity decay in most popular isotopes used in chemistry and medicine. Note: The calculation of radioactivity in minerals is based on certain assumptions.

hps.org/hpspublications/decay.cfm

Decay Calculator. This Web application will allow you to calculate the activity of a radionuclide after a specified interval of time. The list of radionuclides excludes those with half lives measured in seconds.

www.easycalculation.com/formulas/nuclear-decay.html

The radioactive materials contain unstable nuclei and undergo radioactive decay. The nuclear decay formula is calculated by multiplying 1000 with initial number of moles, exponent value of element and time period is divided by 1000. The nuclear decay equation is an efficient way to find the number of moles remaining in the nuclei.

www.nuclear-power.net/.../radioactive-decay-law/radioactive-decay-equation-formula

Decay Law – Equation – Formula. The radioactive decay law states that the probability per unit time that a nucleus will decay is a constant, independent of time. This constant is called the decay constant and is denoted by λ, “lambda”. This constant probability may vary greatly between different types of nuclei, leading to the many different observed decay rates.

www.coolmath.com/algebra/17-exponentials-logarithms/13-radioactive-decay-decibel-levels-01

This algebra lesson introduces radioactive decay and decibel levels and explains how to use their formulas Exponentials & Logarithms - Cool math Algebra Help Lessons - Radioactive Decay and Decibel Levels