For the same nuclide, which character must be identical? ()
A: Proton number
B: Neutron number
C: Electrons number
D: Energy state
A: Proton number
B: Neutron number
C: Electrons number
D: Energy state
举一反三
- All atoms of a given element have the same __________. A: mass B: number of protons C: number of neutrons D: number of electrons and neutrons E: density
- The number of can determine the chemical element. A: neutron B: electron C: atom D: proton
- To any P-type semiconductor, the number of holes ( ) the number of free electrons
- Nuclides<br/>with the same number of protons but different numbers of neutrons, we<br/>called them:() A: Isotope B: Isomer C: Stable nuclide D: Unstable nuclide
- According to recording 4.1, which statement is true? （ ）。 A: Number four and number five. B: Number one and number two. C: Number three and number four. D: Number one and number four.