The elements in Period 3 and the compounds they form display patterns across the period from sodium to chlorine. Which row is correct?
- Aelectronegativity decreases; acid/base behaviour of the oxides: basic $\rightarrow$ amphoteric $\rightarrow$ acidic
- Belectronegativity decreases; acid/base behaviour of the oxides: acidic $\rightarrow$ amphoteric $\rightarrow$ basic
- Celectronegativity increases; acid/base behaviour of the oxides: basic $\rightarrow$ amphoteric $\rightarrow$ acidic
- Delectronegativity increases; acid/base behaviour of the oxides: acidic $\rightarrow$ amphoteric $\rightarrow$ basic