Final answer:
The chemical formula for 1 atom of nickel and 2 atoms of fluorine is NiF2.
Step-by-step explanation:
The chemical formula that correctly displays 1 atom of nickel and 2 atoms of fluorine is NiF2. In this formula, the symbol 'Ni' represents nickel, and 'F' represents fluorine. The subscript '2' indicates that there are 2 atoms of fluorine present, while there is no subscript for nickel, indicating that there is only 1 atom.
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