Unit 2.1 Atoms, Ions, & Molecules

Multiple Choice

Which of these samples shown best represents a compound?

• A

• B

• C

• D

Multiple Choice

Are these molecules also compounds?

• YES
• NO

Multiple Choice

What is the molecular structure of table salt?

• Sandwich

• Molecular who?

• H2O

• NaCl

Multiple Choice

What is the number of protons that the element in this image contain?

• 14

• 7

• 15

• 18

Multiple Choice

What is an isotope? 

• A charged atom
• An atom with different amounts of neutrons
• An atom with different amounts of protons
• A neutral atom

Multiple Choice

What is the atomic number of oxygen?

• 5

• Sandwich

• 8

• 17

Fill in the Blanks

Open Ended

Describe how a covalent bond forms, using the diagram provided.

Multiple Choice

In a covalent bond, one or more electrons are? 

• shared 
• lost 
• gained 
• transferred 

Multiple Choice

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Poll

What type of bond below is the weakest bond?

• Hydrogen Bond

• Covalent Bond

• Ionic Bond