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an atom of an element that loses or gains an electron and becomes electrically charged.
a group of elements between the metals and the non-metals. They are semiconductors and have some...
a laboratory where the chain reaction is steady and controlled so that only one neutron is...
the natural process in which carbon circulates though an ecosystem.
reactions in which bonds break to form products with unpaired electrons.
the phase of matter in which the particles have enough free space to move about, but still...