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Figure 1
Shown below is the structure of caffeine in the centre and two different resonance states I and II with lone pairs and formal charges omitted.
-Referring to Figure 1,how many lone pairs of electrons can be found on the nitrogen atom at F?
Categorical Data
A type of data that can be divided into groups or categories that are mutually exclusive and without any natural order.
Classification
The process of grouping things based on shared qualities or characteristics.
Nominal Data
Nominal data is a type of categorical data where values or categories cannot be logically ordered or ranked. The data represent labels or names that identify categories of similar items without implying hierarchy.
Arbitrary
Based on random choice or personal whim, rather than any reason or system.
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