атомной

In a sentence

• Этот реактор является частью атомной станции.

  This reactor is part of a nuclear power plant.

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

• Она изучает проблемы атомной физики.

  She studies issues of atomic physics.

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

• Мы видели модели атомной структуры вещества.

  We saw models of the atomic structure of a substance.

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