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Half of 85 is 42.5
85
the half life of the radioactive substance is used to determine the mass lost over a period of time. For example rubidium 85 has a half life of 10.756 years, therefore if you had 1kg of Rubidium 85 in 10.756 years it mass will have decreased to 0.5kg due to the radioactive decay. providing the half life of the material is know we can work out the age by seeing how much it had decayed
There are 85 mms in 8 and a half cms.
85 and a half
Three and a half days.
nearly one and a half 60 + 25 = 85 1 hour 25 minutes
No. Half Life: Opposing Force does not require neither Half Life nor Half Life: Blue Shift.
The time it takes for half the atoms in a sample of a radioactive element to decay is called the half life.
Half of 90 is 45 (90 divided by 2)
42.5.