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

select all the correct answers.\nthe 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?\n□ silicon - 32 is the stable daughter isotope and phosphorous - 32 is the unstable parent isotope.\n□ in a given rock sample, the amount of silicon - 32 isotope gets divided in half about every 170 years.\n□ the half - life can be used to determine the amount of silicon - 32 that has decayed from the time the closure temperature was reached.\n□ in a given rock sample, as the amount of silicon - 32 lessens, so does the amount of phosphorous - 32.\n□ in a given rock sample, the amount of silicon - 32 is always equal to the amount of phosphorous - 32.\nreset next

select all the correct answers.\nthe 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?\n□ silicon - 32 is the stable daughter isotope and phosphorous - 32 is the unstable parent isotope.\n□ in a given rock sample, the amount of silicon - 32 isotope gets divided in half about every 170 years.\n□ the half - life can be used to determine the amount of silicon - 32 that has decayed from the time the closure temperature was reached.\n□ in a given rock sample, as the amount of silicon - 32 lessens, so does the amount of phosphorous - 32.\n□ in a given rock sample, the amount of silicon - 32 is always equal to the amount of phosphorous - 32.\nreset next

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 silicon - 32 in a sample halves every 170 years. So, statement B is true.

Step2: Know application of half - life

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 half - life can be used to calculate the amount of decay of silicon - 32. So, statement C is true.

Step3: Analyze parent - daughter relationship

Silicon - 32 is the parent isotope and phosphorus - 32 is the daughter isotope, so statement A is false.

Step4: Consider decay relationship

As silicon - 32 decays, the amount of phosphorus - 32 increases, not decreases with silicon - 32, so statement D is false.

Step5: Analyze isotope amounts

The amounts of silicon - 32 and phosphorus - 32 are not always equal. As decay progresses, the amounts change according to the decay law, so statement E is false.