Ionic Compounds and Electron Transfer

The video tutorial explains how to write the Lewis structure for lithium hydride (LiH), an ionic compound. It describes the transfer of valence electrons from lithium, a metal, to hydrogen, a non-metal, resulting in ionic charges. The tutorial also covers the use of brackets to denote ions and introduces the concept of formula units and crystal structures in ionic compounds.

What type of compound is formed between lithium and hydrogen?

• Covalent compound

• Ionic compound

• Molecular compound

• Metallic compound

How many valence electrons does lithium have?

• Three

• Two

• Four

• One

In an ionic compound, what happens to the valence electron of the metal?

• It remains with the metal

• It is lost to the environment

• It is transferred to the non-metal

• It is shared with the non-metal

What charge does lithium acquire after losing an electron?

• Positive

• Neutral

• Double positive

• Negative

Why does hydrogen only need two valence electrons?

• To lose its charge

• To form a covalent bond

• To become a metal

• To achieve a full outer shell

What is the purpose of using brackets in the Lewis structure of ionic compounds?

• To denote ions

• To highlight the metal

• To indicate shared electrons

• To show the compound is covalent

How are electrons treated differently in ionic compounds compared to covalent compounds?

• They are shared in ionic compounds

• They are transferred in ionic compounds

• They are lost in covalent compounds

• They are gained in covalent compounds

What is a formula unit in the context of ionic compounds?

• A single molecule

• A metallic bond

• A repeating array of ions

• A covalent bond

What structure do ionic compounds like LiH form?

• Gas

• Crystal

• Liquid

• Amorphous solid

What is the significance of understanding the electron transfer in LiH?

• To predict its color

• To comprehend its crystal structure

• To understand its reactivity

• To determine its melting point