ExamPlay Light Logo
Inicieu la sessió

WAEC - Physics (2002 - No. 45)

If a radioactive atom emits a beta particle, Its mass number
increases by one
remains the same
decreases by one
increases by two

Comentaris (0)

Inicieu sessió per comentar
Anunci
BrainBehindX Inc Logo
©2026; Desenvolupat per BrainBehindX Inc