Protons. Protons determine the atomic number which in turn determine what the element is, so if the number of protons is changed the element is changed. Isotopes have a different number of neutrons and Ions have a different number of electrons than the original atom.
Yes, all atoms of the same element have the same number of neutrons.
Because they are all the same type of atoms. Oxygen is an element. If you have 10 oxygen atoms, they will all behave like oxygen, since they are the same element.
All the atoms have the same number of protons (element type).
Isotopes are atoms of the same element with varying number of neutrons. Thus, not all atoms are the same.
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.
A substance in which all atoms are identical is called an element.
The number of protons is identical in all atoms of an element.
All atoms of the same element are not identical. The atoms of same element with different number of neutrons are called as isotopes. Although, the number of protons and electrons are same in every atom.
same
All atoms of an element have the same atomic number.
All atoms of any single element have the same number of protons and electrons.
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.