Isotopes - Practice

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 number of neutrons in an isotope?

Back

To find the number of neutrons, subtract the atomic number (number of protons) from the mass number (total number of protons and 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

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 Titanium-48 have?

Back

Titanium-48 has 22 protons.

Front

What is the significance of the notation 'Osmium-190'?

Back

The notation 'Osmium-190' indicates an isotope of osmium with a mass number of 190, meaning it has 76 protons and 114 neutrons.

Front

How many neutrons are in Krypton-89?

Back

Krypton-89 has 53 neutrons.

Front

What is the neutron count for Iron-56?

Back

Iron-56 has 30 neutrons.

Front

How many neutrons does Nickel-59 have?

Back

Nickel-59 has 31 neutrons.

Front

What is the relationship between isotopes and chemical properties?

Back

Isotopes of an element have the same chemical properties because they have the same number of protons and electrons.