Ionic and Covalent Lewis Structures

A covalent bond results from _________ valence electrons.

• exchanging

• gaining

• sharing

• trading

What type of compound is barium hydroxide, Ba(OH)₂?

• diatomic

• acidic

• covalent

• ionic

Single covalent bonds are also called ______________.

• double bonds

• alpha bonds

• pi bonds

• sigma bonds

Which of these Lewis structures is incorrect?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-4

Choose the correct Lewis Dot diagram for NaCl.

• Diagram F

• Diagram G

• Diagram H

• Diagram J

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.

How many valence electrons does carbon have, which it can use to form bonds?

• 2

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

What is true about covalent compounds? (Check all that apply.)

• bonds are generally weak

• formed between metals and nonmetals

• low melting and boiling points

• solids are usually soft

Tags

NGSS.HS-PS1-1

What is true about Lewis Structures? (Check all that apply.)

• Lewis Structures show all of the electrons for each atom in the molecule.

• Lewis Structures can be drawn using valence electrons of the atoms in a molecule.

• Lewis Structures can be used to determine the molecular geometry of a molecule.

• Lewis Structures show ions that have gained and lost electrons.

Tags

NGSS.HS-PS1-1

Which two elements will form a covalent bond?

• Magnesium and Chlorine

• Sodium and Bromine

• Iron and Sulfur

• Carbon and Oxygen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2