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No, the atomic number does not change when an ion is formed. The number of protons does not change when an ion is formed, so the Atomic Mass would not change.

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Does the atomic number of the element change when its atom forms ion?

No. Atomic Number is defined as the number of positive protons, and when a ion is formed(irrespective of cation or anion) only negative electrons will be lost or added hence the proton number is constant.


When an atom changes into an ion besides the number of electrons what changes?

The electrical charge; also the ionic radius is different from the atomic radius.


How do you determine if an atom is an ion?

An ion is formed when an atom gains or loses electrons, giving it a positive or negative charge. You can determine if an atom is an ion by looking at its number of electrons compared to its atomic number. If the number of electrons is not equal to the number of protons, the atom is an ion.


What is the atomic number for flouride?

Fluoride itself is not an element. It is the ion formed by the element fluorine. The atomic number of fluorine is 9.


What ion has 18 electrons and a mass number of 33 and atomic number of 16?

The sulfide ion, S2-.


What is chlorides atomic number?

Chloride is an ion. It doesnt have a atomic number.


Do the atomic number for an ion differ from its neutral atom?

no. atomic number will be same as the number of protons will not change for an ion and its neutral atom, but the number of electrons will vary.


What is the atomic number of hydrogen ion?

The atomic number of a hydrogen ion (H+) is 1 because it has one proton in its nucleus.


How many protons are in an ion?

The number of protons present in an ion is equivalent to its atomic number.


An Ion with a mass of 209 and atomic number of 84 and net charge of 4 plus?

The ion is a lead ion with a 4+ charge. Its atomic number is 84, and its mass number is 208 (since the mass number is one less than the atomic mass for this particular ion).


What is the atomic number of al ion?

Iron is a metal element. Atomic number of it is 26.


What is the identity of an ion with an atomic number is 16 and mass 33 and 18 electrons?

The ion with an atomic number of 16, mass 33 and 18 electrons is the sulfide ion S2-