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, resulting in different atomic masses.

Front

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

Back

The number of neutrons can be calculated using the formula: Number of Neutrons = Atomic Mass - Number of Protons.

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

What is the atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

How many neutrons are in Argon-40?

Back

Argon-40 has 22 neutrons.

Front

How many neutrons are in Potassium-39?

Back

Potassium-39 has 20 neutrons.

Front

What is the number of neutrons in Nitrogen-14?

Back

Nitrogen-14 has 7 neutrons.

Front

How many neutrons does Carbon-12 have?

Back

Carbon-12 has 6 neutrons.

Front

What is the relationship between atomic mass and the number of protons and neutrons?

Back

The atomic mass of an atom is approximately equal to the sum of the number of protons and neutrons in its nucleus.

Front

What is the significance of isotopes in chemistry?

Back

Isotopes are significant in chemistry for various applications, including dating archaeological finds, medical imaging, and understanding nuclear reactions.