Entrar
WAEC - Physics (2008 - No. 43)
When a radioactive substance undergoes a beta decay, its
mass number decreases by 1
atomic number decreases by 1
mass number increases by 1
atomic number increases by 1
Comentários (0)
Faça login para comentar
Anúncio
Permitir que o javascript carregue esta página corretamente
