Chapter 2 Test

What do protons, electrons and neutrons make?

• element

• compound

• atom

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

True or False? Neutrons have a negative charge

• True
• False

What does the nucleus consist of?

• Protons + Electrons
• Neutrons + Electrons
• Atoms
• Protons + Neutrons

What are the 3 subatomic particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Check all that apply: What part of an atom floats around it?

• Proton

• Neutron

• Electrons

• Molecules

Check all that apply: Water consists...

• Nitrogen

• Hydrogen

• Sodium

• Chlorine

• Oxygen

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

Which of the following properties of water can BEST explain how water molecules stick to the sides of a graduated cylinder?

• surface tension

• expansion

• adhesion

• cohesion