IONS
A neutral atom has the same number of protons and electrons.
Ions are atoms that gain or lose electrons in their shells. They are called cations when they are positive and anions when they are negative.
A neutral atom has the same number of protons and electrons.
Ions are atoms that gain or lose electrons in their shells. They are called cations when they are positive and anions when they are negative.
Un átomo é neutro cando ten o mesmo número de protóns e de electróns. Os ións son átomos que gañan ou perden electróns na codia. Chámanse catións cando son positivos e anións cando son negativos.
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