💿 How does Periodic Table Work

note

This is an authentic video. Do not try to understand every word you hear.
Watch and listen for general and specific information by completing the following tasks.

Before you watch:

Exercise 1. Explain the meaning of the following numbers in Periodic Table.

Video

While you watch:

Exercise 2. Watch the first part of the video (till 00:21) and check your answers to Exercise 1.

Exercise 3. Watch the next part of the video (00:22-1:56) and answer the following questions.

Exercise 4. Watch the next part of the video (1:57-2:44), take a look at the trends across the periods and write down all the changes that happen from left to right across a period with:

Exercise 5. Watch the next part of the video (2:45-3:30), take a look at the trends down a group and write down all the changes that happen with:

Exercise 6. Watch the next part of the video (3:32-till the end) and complete characteristics of 3 groups of the periodic table:

After you watch:

Exercise 7. Predict the physical and chemical properties of elements of Group 13.