Chemistry Pre-Assessment

What do we call anything that has mass and takes up space?

• science
• energy
• matter
• all of the above

Which of the following is NOT an example of matter?

• owls
• dust
• electricity 
• water vapor

Which of the following is a type of physical property?

• reactivity
• flammability
• density
• none of the above

Which of the following correctly matches the subatomic particle to its charge?

• Proton = no charge
  Electron= negative
  Neutron = positive
• Proton = positive
  Electron= negative
  Neutron = no charge 
• Proton = negative
  Electron= positive
  Neutron = no charge
• Proton = positive
  Electron= no charge
  Neutron = negative

What does the nucleus of an atom contain? 

• protons and neutrons
• protons and electrons
• electrons and neutrons
• only neutrons

Where are negatively charged particles likely to be found in an atom?

• nucleus
• rungs
• electron cloud
• throughout the atom

The diagram shows the structure of an atom. What is the name of the item labeled A?

• an energy level
• neutrons
• electrons
• protons

The periodic table is arranged ___________________.

• in alphabetical order
• by the number of neutrons
• by symbols
• by the atomic number

NaCl is an example of which of the following?

• periodic table
• common name
• chemical formula
• chemical name

Chemical symbols located on the periodic table are used to represent ____________________. 

• elements
• equations
• reactions
• compounds