Logg på
WAEC - Physics (1993 - No. 54)
The phenomenon of radioactivity was first discovered by
Marie Curve
Sir J.J Thomson
Henn Becquerel
Niels Bohr
Enrico Fermi
Kommentarer (0)
Logg inn for å kommentere
Annonse
Tillat at javascript laster denne siden ordentlig