Examlex
Define matter.
Explain what is meant by mass and volume.
Is everything in nature matter? If not,what else exists?
Half-life
The period required for the concentration or amount of a particular substance to decrease by half, applied in various contexts such as radioactive decay and pharmacokinetics.
Radioactive Isotope
An isotope of an element that spontaneously undergoes decay, releasing ionizing radiation in the process.
Storage Vial
A small container used for storing liquid samples, often used in scientific laboratories to hold samples securely.
Green Chemistry
A field of chemistry focused on designing products and processes that minimize the use and generation of hazardous substances to protect human health and the environment.
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