Understanding Isotopes

What are the three main particles that make up an atom?

• Electrons, Photons, Neutrons

• Protons, Neutrons, Photons

• Protons, Neutrons, Electrons

• Protons, Electrons, Photons

How is an atom electrically neutral?

• Equal number of protons and neutrons

• Equal number of protons, neutrons, and electrons

• Equal number of electrons and neutrons

• Equal number of protons and electrons

What is the main difference between isotopes of the same element?

• Number of electrons

• Number of shells

• Number of protons

• Number of neutrons

Why do isotopes have the same chemical properties?

• Same atomic number

• Same atomic mass

• Same number of electrons in the outer shell

• Same number of neutrons

What determines the name of an isotope like carbon-12?

• Number of neutrons

• Number of protons

• Number of electrons

• Atomic mass

Which of the following is NOT a carbon isotope?

• Carbon-14

• Carbon-15

• Carbon-13

• Carbon-12

What is the atomic number of carbon isotopes?

• 14

• 6

• 13

• 12

Which of the following is an isotope of hydrogen?

• Hydrogen-6

• Hydrogen-5

• Hydrogen-4

• Hydrogen-1

How many isotopes does chlorine have?

• Four

• One

• Two

• Three

Which of the following is NOT an isotope of uranium?

• Uranium-238

• Uranium-236

• Uranium-235

• Uranium-234