A relation is in first normal form if it meets the definition of a relation:
Each attribute (column) value must be a single value only.
All values for a given attribute (column ) must be of the same type.
Each attribute (column) name must be unique.
The order of attributes (columns) is insignificant
No two tuples (rows) in a relation can be identical.
The order of the tuples (rows) is insignificant.