Atomic Structure and Isotopes Quiz

What is the smallest element based on the number of protons?

• Helium

• Lithium

• Hydrogen

• Carbon

Which element has an atomic number of 6?

• Oxygen

• Carbon

• Lithium

• Helium

What does the symbol 'Fe' represent on the periodic table?

• Iron

• Sodium

• Fluorine

• Phosphorus

What defines isotopes of an element?

• Same number of electrons, different protons

• Same number of protons, different neutrons

• Same number of neutrons, different electrons

• Same number of protons, different electrons

Which isotope of carbon has 7 neutrons?

• Carbon-11

• Carbon-14

• Carbon-13

• Carbon-12

What is the mass number of carbon-12?

• 14

• 12

• 13

• 11

What is the relative atomic mass of copper to one decimal place?

• 62.5

• 64.5

• 65.6

• 63.6

How do you calculate the relative atomic mass?

• Sum of isotope mass times abundance divided by total abundance

• Sum of isotope mass divided by abundance

• Sum of isotope abundance times mass divided by total abundance

• Sum of isotope abundance divided by mass

What is the abundance of copper-63?

• 30.8%

• 100%

• 69.2%

• 50%

Where can you find additional study resources mentioned in the video?

• educationportal.org

• learnonline.net

• studyhub.com

• cognito.org