What are becquerel rays?

Becqerel rays are quickly established that a variety of uranium salts, whether phosphorescent or not, have the same property; proving that the radiation is an intrinsic characteristic of uranium. He referred to the emitted rays as 'uranic rays', and was able to show that they could electrify the air.

Becquerel works with uranium and its compounds, they consist of a mixture of alpha, beta, and gamma rays