Beryllium and Ionic Compounds

The video tutorial explains how to write the formula for beryllium bromide. It starts by identifying the element symbols for beryllium (Be) and bromine (Br), and discusses their ionic charges. Beryllium has a 2+ charge, while bromine has a 1- charge. To form a neutral compound, the charges must balance, requiring two bromide ions to balance one beryllium ion, resulting in the formula BeBr2.

What is the symbol for beryllium?

• Ba

• Bi

• Br

• Be

What type of compound is formed between a metal and a non-metal?

• Molecular

• Covalent

• Ionic

• Metallic

What is the ionic charge of beryllium?

• 2+

• 2-

• 1-

• 1+

How many bromide ions are needed to balance the charge of one beryllium ion?

• Three

• Four

• Two

• One

What is the chemical formula for beryllium bromide?

• BeBr

• BeBr2

• Be2Br

• Be2Br2