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Chemistry, 28.01.2021 22:20 elviaortiz402373
An atom is made up of a positively-charged nucleus surrounded by negatively-charged electrons. The atom is neutral when there are equal numbers of protons and electrons. Ions are formed when there are unequal numbers of protons and electrons in an atom. A positive ion is called a cation whereas a negative ion is called an anion.
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An atom is made up of a positively-charged nucleus surrounded by negatively-charged electrons. The a...
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