1NF mandates atomic values in columns and unique identification for each row.
The following are the properties that determine the First Normal Form:
Atomic Values: Each column in a table must include atomic values, which are indivisible or not further decomposable. This ensures that each item of data is represented in its most basic form, without having several values in a single cell.
Unique Row: This typically involves having a primary key or a combination of columns that uniquely identify each row in the table. Uniqueness ensures that there are no duplicate rows in the table.