Lewis Dot Structure Ionic and Covalent Compounds

Elements combine to form __________.

• compounds
• atoms
• positive ions
• negative ions

Tags

NGSS.MS-PS1-1

How many valence electrons does nitrogen have?

• 3
• 2

• 5
• 1

Tags

NGSS.HS-PS1-1

A covalent bond involves a __________ of electrons.

• sharing
• borrowing
• exchanging
• switching

How many valence electrons does Carbon have

• 1
• 5
• 8
• 4

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

What happens when the sodium atom loses an electron?

• It become negatively charged 
• It become positively charged
• none

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If an atom loses two electrons what charge will it have?

• + 2
•  - 2
• +1
• -1

Tags

NGSS.HS-PS1-7

Which is the correct lewis dot structure for calcium chloride?

• A
• B
• C

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Beryllium, Be, will ____ valence electrons when forming an ionic bond.

• lose 4

• gain 4

• lose 2

• gain 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2