When there are two electrons in the N-layer of a ground state atom, The M-layer must have
A: 8 electrons
B: 10 electrons
C: 18 electrons
D: 8-18 electrons
A: 8 electrons
B: 10 electrons
C: 18 electrons
D: 8-18 electrons
举一反三
- The total spin of two electrons is ( ).
- An electric current is the flow of ___________. A: sort B: stream C: energy electrons D: electrons
- How many electrons can be contained in M shell ( )
- For the same nuclide, which character must be identical? () A: Proton number B: Neutron number C: Electrons number D: Energy state
- Two electrons(电子) will be repelled from each other and so will two nuclei(原子核).