Average Atomic Mass & Mass Spec

Front

What is Average Atomic Mass?

Back

The weighted average of the masses of an element's isotopes, taking into account their natural abundance.

Front

What are Isotopes?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the mass number of an atom?

Back

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

Front

How do you calculate Average Atomic Mass?

Back

Multiply the mass of each isotope by its relative abundance (as a decimal), then sum these values.

Front

What is the significance of isotopes in chemistry?

Back

Isotopes can have different physical properties and can be used in various applications, such as dating and medical imaging.

Front

What is the difference between atomic number and mass number?

Back

Atomic number is the number of protons in an atom, while mass number is the total number of protons and neutrons.

Front

What is the most abundant isotope of Oxygen?

Back

Oxygen-16.

Front

What does it mean if two elements are isotopes?

Back

They are atoms of the same element with different numbers of neutrons.

Front

What is a common use of isotopes in medicine?

Back

Radioactive isotopes are used in imaging and treatment, such as in PET scans.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the mass of an atom and help stabilize the nucleus.