Question 12 of 15 If the half-life of a decaying isotope is 10 years, which statement
is true after 10 years?
A. The relative numbers of atoms cannot be determined.
B. There are more daughter nuclei than parent nuclei in a sample.
C. There are more parent nuclei than daughter nuclei in a sample.
D. The numbers of parent nuclei and daughter nuclei in a
sample are equal.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

it was given as a lesson and guide for prayer.