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Element X is a radioactive

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Radioactive decay is the process by which an unstable element transforms into different element, typically releasing energy as
1. 4 answers
2. asked by james
3. 731 views
An unknown radioactive element decays into non-radioactive substances. In 420 days the radioactivity of a sample decreases by 39
1. 1 answer
2. asked by Kim
3. 6,125 views
An unknown radioactive element decays into non-radioactive substances. In 120 days the radioactivity of a sample decreases by 59
1. 1 answer
2. asked by Erica
3. 781 views
during radioactive decay atoms of a radioactive element break down and change into other atoms of another element-all at oncea)
1. 2 answers
2. asked by victoria
3. 961 views
How many half-lives does it take a radioactive substance to decay until only one-eighth of the original substance remains?a
1. 1 answer
2. 12 views
26. How many half-lives does it take a radioactive substance to decay until only one-eighth of the original substance remains?a
1. 1 answer
2. 8 views
26. How many half-lives does it take a radioactive substance to decay until only one-eighth of the original substance remains?A)
1. 1 answer
2. 11 views
Which of the following statements about radioactive dating is true?a. Radioactive decay is the rate at which new atoms form. b.
1. 70 answers
2. asked by Anonymous
3. 19,522 views
If 70% of a radioactive element remains radioactive after 400 million years , then what percent remains radioactive after 600
1. 1 answer
2. asked by Alexus
3. 1,199 views
if 60% of a radioactive element remains radioactive after 300 million years, then what percent remains radioactive after 500
1. 1 answer
2. asked by Lexi
3. 2,360 views

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