If you begin with 10g of a parent isotope, how much of the isotope will be left after one half-life?

after 1st half life the 10g of isotope will remain 5 g.

Explanation:

Given data:

Mass of isotope = 10 g

Mass remain after one half life = ?

Solution:

At time zero = 10 g

AT 1st half life = 10 g/2 = 5 g

So after 1st half life the 10g of isotope will remain 5 g.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."