The "Atomic number" of an element corresponds to the number of only the
protons in the nucleus of its atoms.
Add to that the number of neutrons that are also in there, and you have
the "Atomic weight".
protons and electrons
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
When two elements have the same atomic number, it means they are isotopes of each other. Isotopes have the same number of protons but different numbers of neutrons in their nuclei. This results in subtle differences in their atomic mass and stability.
No, they have the same atomic mass, which is the number of protons plus the number of neutrons. No two elements have the same atomic number.
both the atomic number and the atomic mass remain the same
The atomic particles of an isotope are the proton, electron and neutron
A chlorine-35 atom has 17 protons, 17 electrons and 18 neutrons, altogether 52 atomic particles. Chlorine-37 has two more neutrons and it has 54 atomic particles.
THe atomic number would decrease by 2 as alpha particle comes out. But for two beta particles the atomic number would increase by 2. So the atomic number remains unchanged due to emission of one alpha followed by 2 beta particles.
No two elements will have the same atomic number because the atomic number of an element is determined by the number of protons in the nucleus of an atom. Since each element has a unique number of protons, each element will have a unique atomic number.
If two atoms have the same atomic number, it means they have the same number of protons in their nucleus. If they also have the same atomic mass, it means they have an equal number of protons and neutrons. These atoms would be isotopes of the same element.
The atomic number is the same for all isotopes.
The atomic number of an element is determined by the number of protons.