Oxidation Numbers and Beryllium

The video tutorial explains how to determine the oxidation numbers for each element in beryllium chloride (BeCl2). It begins by noting that BeCl2 is a neutral compound, meaning the oxidation numbers must sum to zero. Beryllium, being in group 2, has an oxidation number of +2, while chlorine, in group 17, has an oxidation number of -1. The tutorial verifies that the sum of these oxidation numbers equals zero, confirming the calculations. The video concludes with a thank you from Dr. B.

What is the overall charge of the compound BeCl2?

• Positive

• Negative

• Depends on the environment

• Neutral

Which group does beryllium belong to on the periodic table?

• Group 1

• Group 2

• Group 17

• Group 18

What is the oxidation number of chlorine in BeCl2?

• +1

• 0

• -1

• -2

How do the oxidation numbers of beryllium and chlorine in BeCl2 add up?

• They add up to +1

• They add up to -1

• They add up to 0

• They add up to +2

What is the oxidation number of beryllium in BeCl2?

• -1

• 0

• +2

• +1