Isotopes

Front

What are isotopes?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, resulting in different atomic masses.

Front

What is the average atomic mass of an element?

Back

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

Front

How do you determine the most abundant isotope of an element?

Back

The most abundant isotope is typically the one closest to the average atomic mass of the element.

Front

What is the relationship between protons, neutrons, and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the charge of a neutron?

Back

A neutron has no charge; it is neutral.

Front

How many protons does an isotope of titanium have if its atomic number is 22?

Back

An isotope of titanium has 22 protons.

Front

What varies between isotopes of an element?

Back

Isotopes of an element vary in the number of neutrons and therefore in atomic mass.

Front

What is the significance of isotopes in scientific research?

Back

Isotopes are used in various fields such as medicine, archaeology, and environmental science for dating, tracing, and diagnostic purposes.

Front

How many neutrons does lithium-7 have?

Back

Lithium-7 has 4 neutrons (7 total nucleons - 3 protons = 4 neutrons).

Front

What is the difference between atomic number and mass number?

Back

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