Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: rafarock077 on December 13, 2018, 05:48:43 PM
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i have an excersive where it says "an element in the group 5(15)" and i'm not sure which group it is referring to. thx
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The nitrogen group. We used to call it group V and now we call it group 15, numbering continuously across the d block (rather than saying VA and VB, as formerly).