A Particular Isotope Has a Half-Life of 10 Minutes

question 43

Multiple Choice

A particular isotope has a half-life of 10 minutes. If we start with 2,000 atoms now, in a half hour we will have how many atoms left?

• A) 2,000 atoms
• B) 1,000 atoms
• C) 500 atoms
• D) 250 atoms
• E) 125 atoms

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Definitions:

Pollen Tube

In seed plants, a tube that forms when a pollen grain lands on the stigma and germinates. The tube grows, passing between the cells of the stigma and the style to reach the egg inside an ovule, where fertilization occurs.

Foreign Species

Species that are introduced to a new habitat where they are not naturally found, often leading to ecological imbalance.

Floral Parts

Components of a flower, including petals, sepals, stamens, and carpels, which are involved in reproduction.

Monocots

A group of flowering plants (angiosperms) recognized by having one seed leaf, or cotyledon, among other characteristics like parallel leaf venation.