Question

scrieti numarul de protonisi numarul de neutroni din elemente:Xe(Z=54,A=134)si Rn(Z=86,A=222)
tapid pls​

Answer 1

Xe(Z=54,A=134)

p+ =54

A=Z+N

132= 54+N

N=132-54

N= 78

Rn(Z=86,A=222)

p+ =86

A=Z+N

222=86-N

N=222-86

N=136