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 determine the mass number of an isotope?

Back

The mass number of an isotope is the sum of the number of protons and neutrons in its nucleus.

Front

What is the mass number of Osmium-190?

Back

The mass number of Osmium-190 is 190, which is the sum of its 76 protons and 114 neutrons.

Front

What distinguishes isotopes of the same element?

Back

Isotopes of the same element are distinguished by their different numbers of neutrons.

Front

How many neutrons does Bromine-80 have?

Back

Bromine-80 has 45 neutrons (80 - 35 protons = 45 neutrons).

Front

What is the atomic mass of copper based on its isotopes?

Back

The atomic mass of copper, based on its isotopes, is approximately 64.4 amu.

Front

If an element has 12 protons and 13 neutrons, what is its isotope notation?

Back

The isotope notation is Mg-25.

Front

What is the relationship between isotopes and atomic mass?

Back

The atomic mass of an element is a weighted average of the masses of its isotopes, taking into account their relative abundances.

Front

What is the significance of isotopes in scientific research?

Back

Isotopes are significant in scientific research for applications such as dating archaeological finds, medical diagnostics, and tracing chemical pathways.

Front

Can isotopes of an element have different chemical properties?

Back

No, isotopes of an element have the same chemical properties because they have the same number of protons and electrons.