) A magnet that’s domains remain aligned when removed from a magnetic field.

Above the Curie temperature, a magnet permanently loses all or some of its magnetism. External magnetic fields: Strong, opposing magnetic fields can cause the magnetic domains to lose their orientation and relax into a lower state of energy where they are not aligned.

Explanation:

14 days is the half-life of phosphorus-32

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).