Quiz on Classification of Matter and Atomic Theory

What is a pure substance made of one type of atom called?

• Solution

• Compound

• Mixture

• Element

Which of the following is an example of a heterogeneous mixture?

• Saltwater

• Milk

• Muddy water

• Fog

What phase change occurs when ice turns into water?

• Sublimation

• Melting

• Freezing

• Condensation

Which element is the most abundant produced during Big Bang nucleosynthesis?

• Lithium

• Hydrogen

• Carbon

• Helium

What type of fusion occurs in the cores of stars primarily using hydrogen?

• Helium Fusion

• Carbon Fusion

• Hydrogen Fusion

• Boron Fusion

What is the primary product of the proton-proton chain in stars?

• Helium-4

• Positrons

• Gamma-ray Photons

• Neutrons

Which atomic model was proposed by Niels Bohr?

• Plum Pudding Model

• Quantum Mechanical Model

• Planetary Model

• Indivisible Particles Model

What type of bond is formed when two atoms share electrons?

• Ionic Bond

• Covalent Bond

• Metallic Bond

• Hydrogen Bond

What is an isotope?

• Atoms with different atomic masses

• Atoms with different numbers of protons

• Atoms with the same number of neutrons

• Atoms of the same element with different numbers of neutrons

What is the process called when a gas turns into a liquid?

• Vaporization

• Deposition

• Condensation

• Sublimation