Isotopes

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How is the mass number of an isotope calculated?

Back

The mass number is calculated by adding the 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 Lithium have?

Back

Lithium has 3 protons.

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.

Front

What do isotopes of the same element have in common?

Back

Isotopes of the same element have the same number of protons and electrons.

Front

What is the difference between isotopes of an element?

Back

The difference between isotopes of an element is the number of neutrons in the nucleus.

Front

How many neutrons does Carbon-14 have?

Back

Carbon-14 has 8 neutrons.

Front

What is the significance of isotopes in dating archaeological finds?

Back

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

Front

What is a common use of isotopes in medicine?

Back

Isotopes are used in medical imaging and cancer treatment, such as in PET scans.