Units 1-3 Practice

The equation for density is:

What is the first noble gas listed on the Periodic Table? (Use the tables posted around the room to help if you need!)

• Hydrogen
• Helium
• Neon
• Boron

Which of the following has a positive charge?

• Proton
• Neutron
• Electron
• Ion

Which of the following has a negative charge?

• Electron
• Proton
• Neutron
• Ion

Which component of an atom increases or decreases when you have a different isotope?

• Protons
• Neutrons
• Electrons
• Nuclei

An atom's atomic number is equivalent to the number of what?

• Protons
• Neutrons
• Electrons
• Ions

How are elements of the Periodic Table organized?

• Alphabetically
• Chronologically
• By atomic mass
• By atomic number

Which of the following is a property of noble gases?

• They're nonreactive
• They're reactive
• They're metalloids
• They're good conductors

Where would you find an electron of an atom?

• Anywhere surrounding the nucleus
• At a fixed interval from the nucleus
• Attached to the nucleus
• Inside the nucleus with the neutrons

Would cutting your hair be a physical or chemical change?

• Physical
• Chemical