Lewis Structures Ionic

What is the correct Lewis Dot Structure for Barium?

• 
• 
• 
• 

• ionic

• covalent

• metallic

• acid

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonding involves

• transfer of electrons

• sharing of electrons

• holding onto electrons

• electrons are not involved

Nonmetals tend to

• gain electrons

• lose electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Choose the correct Lewis Dot diagram for NaCl.

• Diagram F

• Diagram G

• Diagram H

• Diagram J

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these could be the lewis dot diagram for an oxygen anion?

• A

• B

• C

• D

Answer explanation

Oxygen has 6 valence electrons, but it wants 8. Therefore, it will steal 2 electrons so that it has a total of 8 electrons. Choice A has 8 electrons.

Tags

NGSS.MS-PS1-1

What do atoms that form positive ions tend to do?

• lose electrons

• gain electrons

• lose protons

• gain protons

Which of the following represents the correct Lewis structure for the ionic compound sodium chloride (NaCl)?

• A) Na with one dot, Cl with seven dots

• B) Na with no dots, Cl with eight dots

• C) Na with two dots, Cl with six dots

• D) Na with eight dots, Cl with no dots

What is the charge on the cation in the Lewis structure of magnesium oxide (MgO)?

• A) +1

• B) +2

• C) -1

• D) -2

In the Lewis structure of calcium fluoride (CaF2), how many electrons does each fluoride ion have?

• A) 6

• B) 7

• C) 8

• D) 9