If an element has one and only one stable isotope, an example is Gold.
For example a thorium isotope is Th-231 or 23190 Th.
An example with a zinc isotope: 81Zn (mass number as superscript before the chemical symbol)
Each isotope, stable or unstable, has a specific symbol; for example K-40 for potassium 40.
An example of an atom is carbon (C), which has six protons. An example of an ion is a chloride ion (Cl-), which has gained an electron. An example of an isotope is carbon-14 (14C), which has 8 neutrons instead of the usual 6.
Sodium chloride is a compound, not an isotope.
63Cu
If an element has one and only one stable isotope, an example is Gold.
For example a thorium isotope is Th-231 or 23190 Th.
An example with a zinc isotope: 81Zn (mass number as superscript before the chemical symbol)
Tc99m
Each isotope, stable or unstable, has a specific symbol; for example K-40 for potassium 40.
An example of an atom is carbon (C), which has six protons. An example of an ion is a chloride ion (Cl-), which has gained an electron. An example of an isotope is carbon-14 (14C), which has 8 neutrons instead of the usual 6.
hydrogen-1hydrogen-2carbon-12etc.
Ionized hydrogen-1 isotope is identical to a proton.
The daughter isotope is the result of the radioactive disintegration of the parent isotope. For example radium is a product of the uranium disintegration.The two isotopes have different chemical (different atomic numbers, etc.), physical and nuclear properties.
The chemical symbol of uranium is U.