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 calculate the number of neutrons in an isotope?

Back

Subtract the atomic number from the mass number.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

If two isotopes have the same mass number but different atomic numbers, what does this indicate?

Back

They are different elements, not isotopes.

Front

What distinguishes isotopes of the same element?

Back

Isotopes of the same element differ in the number of neutrons.

Front

What is the mass number of an isotope?

Back

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

Front

Can isotopes have different chemical properties?

Back

Generally, isotopes of the same element have similar chemical properties but may differ in physical properties.

Front

What is the significance of isotopes in medicine?

Back

Isotopes are used in medical imaging and treatment, such as radioactive iodine in thyroid treatment.

Front

How are isotopes represented in chemical notation?

Back

Isotopes are represented by the element symbol followed by the mass number, e.g., Carbon-14.

Front

What is a stable isotope?

Back

A stable isotope is one that does not undergo radioactive decay.

Tags

NGSS.HS-PS1-8