Unit 2 - Lesson 1 Review

What is the smallest unit of matter?

The atom is made up of three particles. Which of the following are the three particles that makes up an atom?

• Neutron

• Proton

• Electron

• Molecules

A substance made up of ONE TYPE OF ATOM and cannot be broken into simpler substances by ordinary chemicals.

• Element

• Compound

• Molecule

• Bonds

What type of bond is created when atoms of other elements bond together to become more stable?

What are the two main types of chemical bonds?

(TWO ANSWERS)

• Ionic Bonds

• Covalent Bonds

• Magnetic Bonds

• Polar Bonds

What type of chemical bond is created when atoms become more stable by GAINING or LOSING electrons?

• Covalent Bonds

• Ionic Bonds

• Magnetic Bonds

• Polar Bonds

What type of chemical bond is created when atoms become more stable by SHARING one or more electrons?

• Covalent Bonds

• Ionic Bonds

• Magnetic Bonds

• Polar Bonds

FILL IN THE BLANK:

________________: Two or more atoms held together by covalent bonds

Carbon Dioxide and Water are two examples of what?

What is the Chemical Formula for the following compound?

Carbon Dioxide