covalent bond

Covalent bonds are generally formed between _.

• metals and nonmetals
• nonmetals
• metals
• metalloids

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Covalent compounds have bonds formed by sharing _ electrons.

• at least three
• valence
• no
• all

Tags

NGSS.MS-PS1-1

Ionic or covalent?

H₂O

• Ionic

• Covalent

• Acid

Tags

NGSS.HS-PS1-2

In a covalent bond, one or more electrons are? 

• shared 
• lost 
• gained 
• transferred 

Molecules made of two atoms

• metallic bond

• diatomic molecule

Most molecules are composed of what?

• one or more elements

• three or more elements

• two or more elements

• four or more elements

Covalent bonds have:

• low melting point

• high melting point

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-4

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1