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What fraction of an original 20.00gram sample of nitrogen-16 remains unchanged after 36.0 seconds?
2
The fraction or ratio of a sample possessing a certain trait is called a what?
The Symbol p that denotes sample proportion.
Approximately what fraction of an original Co-60 sample remains after 21 years?
Half-life is 5.27 years; 21 / 5.27 = 3.99, or almos 4 half-lives; (1/2)4 = 1/16.
What measure of central tendency is most stable from sample to sample?
Statistically speaking, the mean is the most stable from sample to sample. Whereas, the mode is the least stable statistically speaking from sample to sample.
A Numerical Measure from a Sample Such as a Sample Mean Is Known?
sample statistic
What is the fraction of a sample of tritium that remains undecayed after fifty years?
After 50 years, approximately 50% of tritium will remain undecayed in a sample. Tritium has a half-life of about 12.3 years, which means that the amount of undecayed tritium decreases by half every 12.3 years.
What percent of a sample of As-81 remains undecayed after 43.2 seconds?
To determine the percentage of As-81 that remains undecayed after 43.2 seconds, you would need to know its half-life. As-81 has a half-life of approximately 46.2 seconds. Using the formula for radioactive decay, after one half-life (46.2 seconds), 50% would remain. Since 43.2 seconds is slightly less than one half-life, a little more than 50% of the sample remains undecayed, but the exact percentage requires calculations based on the exponential decay formula.
What fraction of an original 20.00gram sample of nitrogen-16 remains unchanged after 36.0 seconds?
2
What is the significance of a half life of a radioisotope?
It tells what fraction of a radioactive sample remains after a certain length of time.
What fraction of a sample remains after three half lives?
An eighth remains.
Which fraction of an original 20.00-gram sample of nitrogen-16 remains unchanged after 36.0 seconds?
Nitrogen-16 has a half-life of about 7.13 seconds. After 36.0 seconds, there would be 3 half-lives. Therefore, 1/2 * 1/2 * 1/2 = 1/8 of the original sample remains unchanged.
After three half-lives what fraction of a radioactive sample remains?
1/8 of the original amount remains.
What fraction of a radioactive sample remains after three half - life?
It is 1/8 .
What fraction of an original sample of a radio isotope remains after 3 half-life periods?
One eighth remains.
What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
How many undecayed M and Ms would remain out of a sample of 600 M and Ms after three half lives?
75
How many undecayed headsium nuclei would remain in a sample of 600 nuclei after three half-lives?
After each half-life, the number of undecayed nuclei is halved. Starting with 600 nuclei, after one half-life, 300 would remain; after the second half-life, 150 would remain; and after the third half-life, 75 would remain. Thus, after three half-lives, 75 undecayed headsium nuclei would remain in the sample.
