Drawing Lewis Dot Structures for Ionic Compounds

This video tutorial explains how to draw Lewis dot structures for ionic compounds, which consist of metals and non-metals. It covers the identification of ionic compounds using the periodic table, with examples like CaCl2 and NaNO3. The tutorial details the process of drawing Lewis structures, emphasizing the transfer of valence electrons from metals to non-metals, resulting in stable octets. It also explains the concept of formula units in ionic crystals and provides step-by-step instructions for drawing Lewis structures for specific compounds.

Which of the following is an ionic compound?

• H2O

• O2

• CO2

• NaCl

What is the key characteristic of ionic compounds?

• They do not conduct electricity.

• They are made up of a metal and a non-metal.

• They involve the sharing of electrons.

• They are made up of two non-metals.

In ionic compounds, what happens to the valence electrons of metals?

• They are transferred to non-metals.

• They are shared with non-metals.

• They remain with the metal.

• They are lost to the environment.

How many valence electrons does sodium (Na) have?

• 2

• 1

• 8

• 7

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

• 1+

• 2-

• 2+

• 1-

What is the charge on sodium (Na) after it loses its valence electron?

• 1+

• 2+

• 1-

• 2-

How many valence electrons does calcium (Ca) have?

• 1

• 2

• 7

• 8

What is the charge on calcium (Ca) after it loses two valence electrons?

• 2-

• 1-

• 2+

• 1+

What type of ion is NO3 in NaNO3?

• Covalent ion

• Polyatomic ion

• Diatomic ion

• Monatomic ion

What is the charge on the NO3 ion after it gains an electron from sodium (Na)?

• 1-

• 2-

• 2+

• 1+