Question

Radioactivity
can any one explain to me about it got a project to do plsssss

Answer 1

what you want to know ???

Answer 2

briefly about it genraly

Answer 3

it has been observed that those elements whose charged number Z is greater than 82 are unstable. Some invisible radiations, that can affect the photographic plates emanate out of these elements. Such elements are called Radioactive and the Phenomenon is called Radioactivity.

Answer 4

Radioactivity was discovered by Henri Becquerel in 1896.

Answer 5

ok thnx but isnt Z not a number

Answer 6

Charge number mean Proton number ,atomic number (Z)

Answer 7

oh i get now damn ure smart

Answer 8

ok u got it . great .