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 do you determine the atomic number of an element?

Back

The atomic number of an element is determined by the number of protons in its nucleus.

Front

What is the mass number of an isotope?

Back

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

Front

What do isotopes of the same element have in common?

Back

Isotopes of the same element have the same atomic number (number of protons) but different mass numbers.

Front

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

Back

To calculate the number of neutrons, subtract the atomic number from the mass number.

Front

What is the significance of isotopes in medicine?

Back

Isotopes are used in medicine for diagnostic imaging and treatment, such as radioactive iodine in thyroid treatment.

Front

What is a common isotope of carbon?

Back

Carbon-12 (C-12) is the most common isotope of carbon, with 6 protons and 6 neutrons.

Front

What is the difference between stable and unstable isotopes?

Back

Stable isotopes do not undergo radioactive decay, while unstable isotopes do and can emit radiation.

Front

How many protons does titanium have?

Back

Titanium has 22 protons.

Front

What is the structure of a krypton-85 atom?

Back

A krypton-85 atom has 36 electrons, 36 protons, and 49 neutrons.