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atoms of the same element that contain equal numbers of protons (same atomic number) but different numbers of neutrons in their nuclei.
a group of organic compounds having a triple bond between two carbons.
rechargeable cells, such as the lead acid accumulator used in motor vehicles.
the separation of a dye into the different colours that make up that dye, as a result of the...
a measure of the ability of an atom to attract electrons to itself; measure of the tendency...