note: to answer some of the questions, it may help to reference a periodic t\ncheckpoint 07\nlisten\nwhen is…

note: to answer some of the questions, it may help to reference a periodic t\ncheckpoint 07\nlisten\nwhen is an isotope considered stable? (select all that apply.)\nthe isotope’s half - life is too long to be measured.\nthe isotope does not emit a form of radiation.\nthe isotope emits some form of radiation.\nthe isotope’s half - life is longer than the average human life.

note: to answer some of the questions, it may help to reference a periodic t\ncheckpoint 07\nlisten\nwhen is an isotope considered stable? (select all that apply.)\nthe isotope’s half - life is too long to be measured.\nthe isotope does not emit a form of radiation.\nthe isotope emits some form of radiation.\nthe isotope’s half - life is longer than the average human life.

Answer

Brief Explanations:

A stable isotope does not decay into other elements over time. This means it does not emit radiation. Also, if an isotope's half - life is too long to be measured, it is considered stable as it essentially does not change in a measurable time frame. Just having a half - life longer than the average human life is not the strict criterion for stability. Stable isotopes do not emit radiation, so the option about emitting radiation is incorrect.

Answer:

The isotope’s half - life is too long to be measured. The isotope does not emit a form of radiation.