just number of neutrons
All of the atoms of a particular element have the same number of protons. But the number of neutrons can differ by a few. Atoms with different numbers of neutrons are the different "isotopes" of the element. All the atoms behave the same way in chemical reactions, because they are the same element. In order to separate out the various isotopes, you have to use something like a centrifuge to sort them out by mass.
- the electron configuration is the same- the number of valence electrons is the same
Chemically isotopes (excepting H,D,T) are identical.
The basic reason that it is difficult for the chemist to distinguish between isotopes is that all the isotopes of a given element have the same chemistry. They all behave the same way chemically because the only difference between these isotopes is the number of neutrons in the nucleus of these atoms. And the number of neutrons in the nucleus doesn't really affect the chemistry of an atom of a given element.
Nitrogen-14 has 7 protons, 7 electrons, and 7 neutrons. Nitrogen-15 has 7 protons, 7 electrons and 8 neutrons. So, the only way they differ is in the NUMBER OF NEUTRONS.
From Intro AP Chem Knowledge OnlyThe number of neutrons in the nucleus differs, the atomic mass differs, as well as the physical properties and the nuclear stability. The chemical properties remain the same. I do not know about anything beyond that, but that much I'm certain on.I don't know about the above answer but from what I know in Chemistry is that the protons is what makes the isotopes of each element differ and the neutrons. Hope this helpsI think the first answer is correct. The protons do not make any difference. That's from AP Bio knowlege.
The atoms may be slightly different in shape or size etc. however if they are all of the same type they will all behave and react in the same way. Eg. Two atoms of Frankium may be different in the ways I have described but their chemical properties, behaviour and reactivity are the same.
The masses of any two atoms of the same element are not always the same. Atomic mass (the mass you see on the periodic table) is just a weighted average of all of the weights of all of the different isotopes of an element.
Isotopes of the same element have the same number of protons. They will also have the same number of electrons in a neutral state. Where they differ is in the number of neutrons in the nucleus. The chemical properties of an element are almost entirely determined by its electron structure, since chemical bonds can be understood as the transfer or sharing of electrons. This means isotopes of the same element will behave in the same way chemically. They will form the same chemical compounds and be largely indistinguishable from their isotopic brethren.
Atoms of the same element have the same number of protons, which determines their identity. However, they may have different numbers of neutrons, leading to different isotopes of the element. These isotopes can have slightly different physical properties but behave chemically in the same way.
Isotopes of the same element have the same number of protons. They will also have the same number of electrons in a neutral state. Where they differ is in the number of neutrons in the nucleus. The chemical properties of an element are almost entirely determined by its electron structure, since chemical bonds can be understood as the transfer or sharing of electrons. This means isotopes of the same element will behave in the same way chemically. They will form the same chemical compounds and be largely indistinguishable from their isotopic brethren.
The two isotopes of chlorine, chlorine-35 and chlorine-37, have the same number of protons but differ in the number of neutrons. This results in the same electronic structure and chemical properties, as chemical reactions primarily involve the interaction of electrons. Since the isotopes behave identically in terms of electron configuration, they do not differ in their chemical reactivity. Therefore, they participate in chemical reactions in the same way.