answersLogoWhite

0

The isotopes of a given element, such as oxygen-16 and oxygen-18 have the same number of protons in their nuclei, but different numbers of neutrons, and therefore different mass numbers. Oxygen-16 has 8 protons (its atomic number) and 8 neutrons, while oxygen-18 has 8 protons and 10 neutrons. As long as they are neutral atoms, they also both have 8 electrons.

An ion is an atom of an element, that has lost or gained one or more electrons, developing a positive or negative charge. When an oxygen atom ionizes, it gains two electrons, forming an oxide ion with a charge of 2-. The oxide ion would still have the same number of protons (8 for all oxygen atoms and ions), and it would have the same number of neutrons as the isotope that became the ion, so it would have the same mass number as the particular oxygen isotope that gained the two electrons, but the number of electrons would not equal the number of protons as it would in a neutral atom.

User Avatar

Wiki User

10y ago

What else can I help you with?

Related Questions

What is a antonym for isotope?

The antonym for isotope is non-isotope. An isotope refers to atoms of the same element with different numbers of neutrons, whereas non-isotope would refer to atoms of the same element having the same number of neutrons.


How do scienctist tell the difference between two isotope of the same element?

Isotopes of the same element are determined based off the number of neutrons the atom has which is directed related to the atomic mass of the element( the more neutrons the greater the mass of that atom). Because you can not change the number of protons in an atom without changing the element, scientist differentiate isotopes based off the atomic mass of the isotope.


What is an atom called when the number of neutron changes?

An atom with a different number of neutrons is called an isotope of the original element. Isotopes have the same number of protons (and thus the same element) but different numbers of neutrons.


What is the difference between a nuclide and an isotope?

An isotope is an element that has the same number of protons and a different number of neutrons, whereas a nuclide is a specifically defined isotope. Quite literally, they refer to the exact same atom, but the difference lies in the definition. Nuclides are defined by many different aspects, such as half life, mode of decay, percent abundance, and so on. The Chart of the Nuclides is a very extensive reference for the characteristics of over 3000 different isotopes. The term isotope is merely a way of differentiating between an atom that is the same element (same number of protons) but has varying numbers of neutrons.


What differentiates an atom from an isotope?

An isotope is an atom of an element. Isotopes are atoms of the same element that have different numbers of neutrons. However, all atoms of the same element have the same number of protons.


What differentiates an isotope of an element from any other atom of that element?

Isotopes are species of atoms having same atomic no. but different atomic masses. So an isotope has either lesser or more neutrons than the usual atom of the element ( often called the most abundant isotope).


What the difference between radioactivity and half life?

An isotope of a chemical element is an atom that has the same number of protons (this also means this atom has the same atomic number) and electrons, but has a different numbers on neutrons. The isotope is radioactive if it has too many neutrons in the nucleus and because of this the isotope is unstable. The half-life of a radioactive isotope is a time period. When the isotope is at the end of the period it's weight will be the half of the starter weight.


Why need to know the percentage of each isotope of an element to determine the atomic mass?

Because each isotope of an element has a mass different from any other isotope of the same element, and the atomic mass of an element is an average, weighted by the proportion of each isotope, in the naturally occurring element.


What relationship exist between the mass number of an element and the isotopes of that element?

Each isotope of the same element has a specific mass number, which is the sum of the protons and neutrons in the nucleus.


How can the researcher change one isotope into a different isotope of the same element?

By striking it with neutrons.


What is an isotope?

An isotope is an element with the same number of electrons and protons different number of neutrons.


What is an a isotope?

Isotopes are different kinds of the same element.