The half-life of radium is approximately 1,600 years. How muchof a 1-gram sample
ID: 3094545 • Letter: T
Question
The half-life of radium is approximately 1,600 years. How muchof a 1-gram sample will remain after 1,000 years? A=Ao2-t/h (Radioactive Decay formula) Solution; A= 1 * 2 -1,000/1,600 = 0.648419777 How do i get this answer either by using a graphing calculatoror manually? Please explain every step. I have a ti-84 and ascientific calculator. The half-life of radium is approximately 1,600 years. How muchof a 1-gram sample will remain after 1,000 years? A=Ao2-t/h (Radioactive Decay formula) Solution; A= 1 * 2 -1,000/1,600 = 0.648419777 How do i get this answer either by using a graphing calculatoror manually? Please explain every step. I have a ti-84 and ascientific calculator. = 0.648419777 How do i get this answer either by using a graphing calculatoror manually? Please explain every step. I have a ti-84 and ascientific calculator.Explanation / Answer
On you TI-84 (I have a TI-84 Plus), you need to type in yourequation like this:
1 X 2^(-1000/1600)
The ^ sign is right underneath the clear button on my TI-84Plus, so it shouldn't be different on your calculator. Theparentheses signs are right above the 8 and 9 buttons.
You absolutely MUST have the parentheses when you are typingthe exponent value into your calculator! If you type it in withoutthe parentheses, you calculator will follow the order of operationsand will divide 2^-1000 by 1600.
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