Front

What is a mass number?

Back

The number of protons and neutrons in the nucleus.

Front

What is the name of the isotope with 35 mass number?

Back

Chlorine-35.

Front

How do you determine the number of neutrons in an isotope?

Back

Subtract the number of protons from the mass number.

Front

What do isotopes of an element have in common?

Back

They have the same number of protons but different mass numbers.

Front

What is the name of the isotope with 54 protons and 79 neutrons?

Back

Xenon-133.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus.

Front

How many neutrons are in Chlorine-35?

Back

18 neutrons.

Front

What is the difference between mass number and atomic number?

Back

Mass number is the sum of protons and neutrons; atomic number is the number of protons.

Front

What are the three isotopes of carbon?

Back

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