Question

please help me to solve these questions please!​

Answer 1

Step-by-step explanation:

d

no change in atomic number and mass number

Answer 2

(d) no change in atomic number and mass number

$\boxed{\pink{Atomic \: number = no. \: of \: protons }}$

$\boxed{\orange{mass \: number = no.\: of \: protons + no. \: of \: neutrons }}$

when atom changes into ion , there is no change in mass number and atomic number

.

So

(d) no change in atomic number and mass number is correct