Examlex
Why did colonial masters first adopt the institution of indentured servitude rather than Indian or black slavery to meet their demands for labor? Why, then, did black slavery replace indentured servitude?
Radioactive Elements
Elements that spontaneously emit radiation as a result of the decay of their atomic nuclei.
Nobel Prizes
A set of annual international awards bestowed in several categories by Swedish and Norwegian institutions in recognition of academic, cultural, or scientific advances.
Ionize
The process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons.
Alpha Particles
A type of ionizing radiation consisting of two protons and two neutrons; they are a common form of particles emitted by radioactive materials.
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