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Molecules is actually an incorrect answer, as molecules are assortments of atoms that are bonded together via their electron(s) either by covalent or ionic bonds. An atomic number is a number that signifies an atoms number of protons. All elements are atoms, and there are 118 known elements, all with different atomic numbers, for they each have different amounts of protons. In essence, the atomic number DEFINES the atom, for instance Hydrogen (H+), has only one proton, while Ununotium has 118 protons. So if an atom has a different number of protons in its nucleus than another atom, then they always will be different elements. Therefore they are not "grouped" into anything other that most basically the Periodic Table.

So to answer your question directly, there is no "group" to speak of, for all atoms with the same atomic number are essentially the same type of atom.

You may have meant neutrons, as atoms that are the same but with varying numbers of neutrons can still be the same element, yet differ in neutrons in the nucleus. These are called Isotopes.

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Atoms of the same atomic are called what?

isotopes Atoms of the same element are called Isotopes. they have the same number of atoms (i.e. same atomic number) but different number of neutrons


What atoms have the same atomic number?

Atoms of the same Element have this.


Are atoms with the same atomic number atoms of the same element?

yes. Isotopes of an element have the same number of protons, thus electorns, thus the same chemical properties. Where isotpes differ is in the number of neutrons. Consider hydrogen, atomic number 1, atomic weight 1, 1 proton, 1 electron vs duterium, atomic number 1 atomic weight 2, 1 proton, 1 electron, 1 neutron. H2O = water D2O = heavy water


Can All carbon atoms have the same atomic number?

Yes, all carbon atoms have the same atomic number, and that is 6.


What are atoms with the same atomic number but different mass called?

Atoms with the same atomic number are all atoms of the same element. However, if the atoms have different molecular weights, they are isotopes of the same element.


What are Atoms with the same number of protons are?

All atoms with the same number of protons are atoms of the same element. The number of protons is the atomic number of the element.


What does it mean if two atoms are isotopes?

If two atoms are isotopes, it means they have the same number of protons but different numbers of neutrons. Thus, they have the same atomic numbers, but different atomic masses.


What is the same as the atomic mass number of an element?

Atoms atomic number represents their number of protons.


Same atomic number same atomic mas?

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.


Do all of atoms of argon have same atomic number?

Yes


If you have 2 atoms have the same number of protons but differernt number what will they have the same?

They will have the same atomic number.


What is a pure substance - all the atoms have the same atomic number or number of protons?

A pure substance in which all the atoms have the same atomic number or number of protons is an element.