Atomic Structure

What is the atomic number of an element?

• The number of electrons in an atom

• The number of protons in an atom

• The number of neutrons in an atom

• The total number of particles in an atom

How do you calculate the mass number of an atom?

• Add the number of protons and electrons

• Add the number of neutrons and electrons

• Add the number of protons, neutrons, and electrons

• Add the number of protons and neutrons

What does atomic mass represent?

• The average mass of an element's atoms

• The number of neutrons in an atom

• The weight of an atom's electrons

• The total number of protons in an atom

What is an isotope?

• An element with a different number of protons

• An element with the same number of neutrons but different protons

• An element with a different number of electrons

• An element with the same number of protons but different neutrons

How many neutrons does Carbon-14 have?

• 14

• 8

• 7

• 6