Isotopes 1

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

How do isotopes of an element differ?

Back

Isotopes of an element differ in the number of neutrons they contain.

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 do you calculate 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

How many protons are in Carbon-12?

Back

6 protons.

Front

How many neutrons are in Carbon-12?

Back

6 neutrons.

Front

What is the mass number of Nitrogen-16?

Back

16.

Front

How many protons are in Nitrogen-16?

Back

7 protons.

Front

How many neutrons are in Nitrogen-16?

Back

9 neutrons.