Question

one u or one amu means​

Answer 1

Answer:

what you mean?

___/___________

Answer 2

Answer:

1 a.m.u = 1/12th unit of C - 12

$\bigstar$ Atomic mass unit (amu; dalton): A unit of mass equal to exactly 1/12 the mass of one 12C atom, or 1.660538921 x 10−27 kg. This is the approximate mass of one proton or one neutron.