Isotopes

Front

What is an isotope?

Back

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons.

Front

How do you calculate the number of neutrons in an isotope?

Back

Number of neutrons = Mass number - Atomic number.

Front

What is the mass number of an isotope?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many protons does Bromine-80 have?

Back

Bromine-80 has 35 protons.

Front

If an isotope has a mass number of 14 and 6 protons, how many neutrons does it have?

Back

It has 8 neutrons.

Front

What is the relationship between isotopes and chemical properties?

Back

Isotopes of an element have the same chemical properties because they have the same number of protons and electrons.

Front

What is the significance of isotopes in dating methods?

Back

Isotopes like Carbon-14 are used in radiocarbon dating to determine the age of organic materials.

Front

What is the difference between stable and unstable isotopes?

Back

Stable isotopes do not change over time, while unstable isotopes (radioisotopes) decay and emit radiation.

Front

What is an example of a radioactive isotope?

Back

An example of a radioactive isotope is Uranium-238.