Mrs. Taylors Quiz Sample

What happens to an element if a proton is removed? 

• It becomes a different element.

• It becomes a different compound. 

• It becomes a different molecule.

Which subatomic particle is located in the nucleus of an atom? 

• a) Electron 

• b) Proton 

• d) Cloud particle

What does the atomic number of an atom represent? 

• a) Number of protons

• b) Number of neutrons 

• c) Atomic mass 

• d) Total number of electrons 

Where are metalloids located on the Periodic Table?

• a) Group 1

• b) Group 17 

• c) Between metals and nonmetals 

• d) Inert gases

Which of the following is a compound molecule? 

• a) O2 

• b) Na 

• c) H2O 

• d) He

In a mixture diagram, what is represented by a combination of two or more elements in fixed proportions?

• a) Compound

• b) Molecule 

• c) Element 

• d) Homogeneous mixture 

What is the main difference between an elemental molecule and a compound molecule? 

• a) Number of atoms 

• b) Types of atoms 

• c) Presence of bonds 

• d) Molecular weight 

In a chemical formula, what does a subscript represent? 

• a) Number of atoms 

• b) Number of molecules 

• c) Coefficient 

• d) Atomic mass 

What does a diagram showing pure substance or mixture indicate? 

• a) Particle arrangement 

• b) Molecular weight 

• c) Types of bonds 

• d) Electron configuration 

What category does a molecule fall into? 

• a) Pure substance 

• b) Mixture 

• c) Elemental molecule 

• d) Compound molecule