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The atomic number of an element is the number of protons in its nucleus. The number of protons define what the element is.

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11y ago
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1mo ago

The atomic number represents the number of protons in an atom's nucleus, which determines the element's identity. All atoms of the same element have the same number of protons in their nucleus, hence they all have the same atomic number.

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Q: Why do all atoms of an element have the same atomic number?
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Related questions

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

Yes, atoms with the same atomic number are atoms of the same element. The atomic number represents the number of protons in the nucleus of an atom, which determines an element's identity. Therefore, atoms with the same atomic number belong to the same element.


What atoms have the same atomic number?

Atoms of the same Element have this.


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 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.


Do all atoms of any one element have the same atomic number?

An atomic number is actually related to an element and not an atom. Therefore, the question is not relevant. It is NOT atoms that have an atomic number; it is the element.


Can atoms of different elements have the same number of protons be from the same element?

No, atoms of different elements cannot have the same number of protons. The number of protons in the nucleus of an atom determines the element it is. If two atoms have the same number of protons, they are from the same element.


What must atoms of the same element have?

All atoms of the same element have the same number of protons, which is its atomic number. A neutral atom will have the same number of electrons as protons.


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 do all atoms of the same elemnt have?

All atoms of the same element have the same number of protons in their atomic nuclei. The number of protons is the atomic number for that element on the periodic table. The elements are arranged in order of increasing atomic number on the periodic table.


What element is composed of atoms that all have the same atomic number?

An element is composed of atoms that all have the same atomic number. Each atom of this element has the same number of protons in its nucleus, which determines the element's identity on the periodic table.


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

Atoms atomic number represents their number of protons.


What element has 81protons in the nuclei of its atoms?

An element's number of protons is the same as its atomic number.