The EA found that the periodic element in Group IA IIA and IIIA are negative elements that are less than the right. This means that among such elements tend to gain electrons less. The IIA elements among which there is the highest value. Show that the electron hardest part element IVA VA VIA and VIIA are likely to gain electrons, especially among VIIA like electrons highest in the first one-electron element are atoms with the electrons as the inert gases. Among the Next EA, which is very stable, so the value is negative.
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