An ion. If electrons are in excess over proton then it is negative ion. And if less then positive ion
The number of protons in an atom is equal to its atomic number, which is typically found on the periodic table. The number of electrons in a neutral atom is also equal to the number of protons. If the atom is charged (an ion), the number of electrons may be different from the number of protons.
The number of protons is a specific characteristic of an atom; if the number of protons is other the element is other.
A neutral atom of a chemical element has a constant number of protons and electrons; loss or gain of electrons transform this atom in an ion.After the change of the number of protons the identity of the atom is lost.
An ion
The number of electrons should equal the number of protons, otherwise you have an ion.
In a neutral atom the number of electrons is equal to the number of protons; and the number of protons is the label of a chemical element.
No, there is no requirement that the number of protons equal the number of neutrons. In fact, this gives rise to the various isotopes of a given element (Different isotopes will have different numbers of neutrons, while sharing the same number of protons). The number of protons is what generally defines an element. By being "uncharged" the atom is understood to have the same number of electrons as protons. Neutrons, being neutral, do not carry charge.
This relationship is for an atom and its ion.
The number of electrons should = the number of protons.
An atom contains an equal number of electrons and protons, which balances out the charge to neutral. The number of electrons in an atom is determined by its atomic number, which is the same as the number of protons in the nucleus.
You could describe it as neutral as the charge of the protons cancels out the charge of the electrons, essentially though it is just a normal atom as if the number of protons was different to the number of electrons, it would be classed as an ion.
Protons, neutrons, and electrons are subunits present in equal numbers in an atom. The number of protons in an atom is equal to the number of electrons, while the number of neutrons can vary in different isotopes of an element.