Chemistry Pre-Assessment

Which type of radiation is least penetrating?

• Gamma
• They are equal
• Beta
• Alpha

Which prefix represents the smallest?

• giga
• milli
• nano
• kilo

Which prefix represents the largest?

• centi-
• mega-
• kilo-
• milli-

Co (cobalt) and Fe (iron) are both

• transition metals
• halogens
• metalloids
• non-metals

The ion that contains 24 protons, 26 neutrons and 22 electrons would be represented by the symbol: 

• ⁵⁰V³⁺
•  ²⁶Cr²⁺  
• ⁵⁰Cr²⁺  
• None of the above

In which state of matter are the molecules the most compressed

• liquid
• gas
• solid
• plasma

Zero degrees Celsius is equal to what temperature Kelvin?

• -273
• 0
• 100
• 273

Density is measured in...

• grams/mL
• mL/grams
• mol/liter
• psi

Which of the following is a chemical property?

• color
• tendency to rust
• mass
• malleability

potassium-39, potassium-40, and potassium-41 are

• elements
• isotopes
• alloys
• allotropes