select all the correct answers. the isotope silicon - 32 decays into phosphorus - 32. silicon - 32 has a…

select all the correct answers. the isotope silicon - 32 decays into phosphorus - 32. silicon - 32 has a half - life of 170 years and can be used to find the age of rocks it is contained in. which two statements are true regarding this scenario? silicon - 32 is the stable daughter isotope and phosphorous - 32 is the unstable parent isotope in a given rock sample, the amount of silicon - 32 isotope gets divided in half about every 170 years. the half - life can be used to determine the amount of silicon - 32 that has decayed from the time the closure temperature was reached. in a given rock sample, as the amount of silicon - 32 lessens, so does the amount of phosphorous - 32 in a given rock sample, the amount of silicon - 32 is always equal to the amount of phosphorous - 32

select all the correct answers. the isotope silicon - 32 decays into phosphorus - 32. silicon - 32 has a half - life of 170 years and can be used to find the age of rocks it is contained in. which two statements are true regarding this scenario? silicon - 32 is the stable daughter isotope and phosphorous - 32 is the unstable parent isotope in a given rock sample, the amount of silicon - 32 isotope gets divided in half about every 170 years. the half - life can be used to determine the amount of silicon - 32 that has decayed from the time the closure temperature was reached. in a given rock sample, as the amount of silicon - 32 lessens, so does the amount of phosphorous - 32 in a given rock sample, the amount of silicon - 32 is always equal to the amount of phosphorous - 32

Answer

Answer:

B. In a given rock sample, the amount of silicon - 32 isotope gets divided in half about every 170 years. C. The half - life can be used to determine the amount of silicon - 32 that has decayed from the time the closure temperature was reached.

Explanation:

Step1: Understand half - life concept

Half - life is the time it takes for half of a radioactive substance to decay. For silicon - 32 with a half - life of 170 years, the amount of it in a sample halves every 170 years. So, statement B is correct.

Step2: Use of half - life in dating

The half - life of a radioactive isotope like silicon - 32 can be used in radiometric dating. Once the closure temperature is reached (when the system becomes closed to the exchange of isotopes), the decay of silicon - 32 can be used to calculate how much has decayed over time. So, statement C is correct.

Step3: Analyze incorrect statements

Silicon - 32 is the parent isotope and phosphorus - 32 is the daughter isotope, so statement A is wrong. As silicon - 32 decays into phosphorus - 32, as the amount of silicon - 32 lessens, the amount of phosphorus - 32 increases, so statement D is wrong. And the amounts of silicon - 32 and phosphorus - 32 are not always equal, so statement E is wrong.