How do the properties of magnets allow them to be useful to society?

Ithink is a because if say increased in electronegativity

Ireally don’t know this

Ans(15) minutes;

The main types of electromagnetic radiation. radio  waves have  the lowest frequencies  and  longest  wavelengths, while gamma  waves have highest frequencies  and shortest wavelengths. the wavelengths vary across the electromagnetic spectrum from about 10–15 m to more than 104 m.hope it !