Mastering Lewis Dot Structures for Ionic Compounds

This video tutorial teaches how to draw Lewis dot structures for ionic compounds, which consist of metals and non-metals. It explains the process using examples like NaCl, CaCl2, and NaNO3, highlighting the transfer of valence electrons from metals to non-metals. The video also distinguishes between ionic and covalent compounds and provides guidance on drawing Lewis structures for polyatomic ions.

Which of the following is an ionic compound?

• H2O

• NaCl

• CH4

• O2

What is the role of metals in ionic compounds?

• They transfer valence electrons to non-metals.

• They gain electrons from non-metals.

• They share electrons with non-metals.

• They do not interact with non-metals.

How many valence electrons does sodium have?

• One

• Two

• Seven

• Eight

What charge does chlorine acquire after gaining an electron in NaCl?

• Double positive

• Negative

• Neutral

• Positive

In the Lewis structure of NaCl, what is the charge on sodium?

• 1+

• 2+

• 1-

• Neutral

How many valence electrons does calcium have?

• Eight

• One

• Two

• Seven

What is the charge on calcium after it loses two electrons?

• 1-

• 2+

• 2-

• 1+

What type of ion is NO3 in NaNO3?

• Anion

• Monatomic ion

• Polyatomic ion

• Cation

What is the charge on the NO3 ion after gaining an electron?

• 1-

• 2+

• 1+

• 2-

What is the significance of the 'ate' suffix in nitrate?

• Indicates a polyatomic ion

• Indicates a neutral molecule

• Indicates a cation

• Indicates a monatomic ion