The data below present measured electron-affinity (EA) values for three second-period…

CHEMISTRY · Multi-part · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

The data below present measured electron-affinity (EA) values for three second-period elements.

Element	Electron affinity / $\text{kJ\,mol}^{-1}$
N	+7
O	–141
F	–328

(Positive EA indicates an endothermic process.) (1) Part (a) (2) Part (b) (3) Part (c) (4) Part (d)