52. (03-7-12) Atomning massasi 5,845-10"
26 kg ga teng. Uning yadrosidagi protonlar soni 17 ta ekanligi malum bolsa, undagi neytronlar sonini toping.
A) 17 B)18
52. (03-7-12) Atomning massasi 5,845-10"
26 kg ga teng. Uning yadrosidagi protonlar soni 17 ta ekanligi malum bolsa, undagi neytronlar sonini toping.
A) 17 B)18
C) 19 D)20