атомной

атомной

"Atomnoy" (атомной) means "atomic" or "nuclear" in English.

Here, 'атомной' (nuclear) modifies 'станции' (station), showing its relation to nuclear energy, i.e., something belonging to or related to atomic actions.

Этот реактор является частью атомной станции.

This reactor is part of a nuclear power plant.

In this case, 'атомной' (atomic) describes 'физики' (physics), indicating a scientific field focusing on atoms and their properties.

Она изучает проблемы атомной физики.

She studies issues of atomic physics.

Here, 'атомной' (atomic) denotes the structure, which is related to the arrangement of atoms within a substance.

Мы видели модели атомной структуры вещества.

We saw models of the atomic structure of a substance.