Question

Henri Becquerel discovered radio
isotope of
. A. Uranium B. Polonium
C. Radium D. Radon​

Answer 1

Answer:

When Henri Becquerel investigated the newly discovered X-rays in 1896, it led to studies of how uranium salts are affected by light. By accident, he discovered that uranium salts spontaneously emit a penetrating radiation that can be registered on a photographic plate.

Answer 2

Answer:

A. Uranium

Explanation:

In 1896 Henri Becquerel discovered that uranium emitted penetrating rays similar to X-rays

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