How to Calculate Isotopes?

Answer The number of protons in an atom determine what element it is, but atoms can have different numbers of neutrons to give it a different mass. When two atoms of the same element have different number... Read More »

Top Q&A For: How to Calculate Isotopes

What Is the Meaning of Isotopes?

Isotopes are atoms with the same number of electrons and protons but different numbers of neutrons. One element can have several different isotopes. They are all the same element but react in sligh... Read More »

How many isotopes of hydrogen are known?

There are three hydrogen isotopes. The most common isotope has no neutrons in the nucleus. Other isotopes--deuterium and tritium--contain one (deuterium) and two (tritium) neutrons within the atom.... Read More »

How many isotopes does neodymium have?

Neodymium, an element in the lanthanide series, has seven naturally occurring isotopes. The natural element is composed of a mix of stable isotopes with mass numbers from Nd-142 to Nd-150. Accordin... Read More »

When did J.J. Thomson discover isotopes?

Through his research on positive ions, Sir Joseph James (J.J.) Thomson found that neon gas was a combination of two types of ions. He also proposed these ions could have a different weight, charge,... Read More »