Atom & Isotope Review

Front

What are isotopes?

Back

Isotopes are atoms with the same number of protons but varying numbers of neutrons.

Front

Which elements are considered isotopes of carbon?

Back

Carbon-12, Carbon-13, Carbon-14.

Front

How many protons are in Neon-22?

Back

10 protons.

Front

What is the definition of mass number?

Back

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

Front

What distinguishes isotopes from each other?

Back

Isotopes 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.

Front

How do you calculate the mass number of an atom?

Back

Mass number = Number of protons + Number of neutrons.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a net charge due to the loss or gain of electrons.

Front

What is an example of an isotope?

Back

Carbon-14 is an example of an isotope of carbon.

Front

What is the significance of isotopes in dating materials?

Back

Isotopes like Carbon-14 are used in radiocarbon dating to determine the age of organic materials.