Elements and Chemical Bonds

The compound C0₂ would be classified as a 

• Covalent Bond
• Ionic Bond
• Element
• Metallic Bond

How many atoms total are in FeO₂?

• 3

• 2

• 1

• 4

Tags

NGSS.MS-PS1-1

When Calcium forms a bond, what will occur? 

• Calcium with give away it two valence electrons to form an covalent bond. 
• Calcium will share its two valence electrons to form an covalent bond
• Calcium will give away its two valence electrons to form an ionic bond
• Calcium will share its two valence electrons to form an ionic bond. 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A water molecule (H₂O) is an example of a covalent bond becuase ____.

• The hydrogen gains an electron an the oxygen loses one.  
• Electrons are shared between the hydrogen and oxygen
• They do not form a neutral group of atoms. 
• Hydrogen and oxygen are both negative ions.  

Ionic bonds form between what types of elements? 

• Metal to Metal
• Metal to Nonmetal
• Nonmetal to Nonmetal

Covalent bonds form between what types of elements? 

• Metal to Nonmetal
• Nonmetal to Nonmetal
• Metal to Metal

Which of the below elements will most likely form an Ionic Bond? 

• P and O
• Cs and O
• Li and Mg
• Ne and Cl

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the below elements will most likely form an Covalent Bond? 

• K and Cl
• H and O
• Al and Mg
• K and Na

Tags

NGSS.HS-PS1-2

The force that hold two atoms together is called a ______. 

• Chemical Change
• Reaction
• Chemical Bond
• Physical Change

Tags

NGSS.HS-PS1-3

Which Compound would be classified as a covalent bond? 

• CaCl₂
• P₂O₅
• KI
• MgO