1. Ask the right question to find the best answer
Can i find the information about him in the internet ?
Is he popular?
Is he scientist?
Is he alive?
Have I ever heard his name but have not seen him?
Is there any relation of this man with today's lesson?

2. And answer is ...
And Yuri Tsolakovich Oganessian is a Russian nuclear physicist.
The 118th chemical element oganesson was named after him in 2016, the second instance that an element was named after a living person.

3. GUESS THE TOPIC
118

4. GUESS THE TOPIC

5. PERIODIC TABLE

6. MODERN PERIODIC TABLE

7. The structure of MODERN PERIODIC TABLE
MODERN PERIODIC TABLE is very important tool for chemists and scientists.
It is easy to predict the properties of elements by using periodic table.
In PERIODIC TABLE all elements are arranged from left to right and top to bottom in order of increasing atomic number
Atomic number is the order number of elements which is indicated by the number of protons of element.
Atomic number = proton number

8. MODERN PERIODIC TABLE
Nowadays, there are 118 chemical elements. 94 of them are occurred naturally, where the remaining 24 elements are synthetic elements
Simple periodic table contains symbol, atomic number and relative atomic weight of chemical elements

9. How to read the MODERN PERIODIC TABLE
Magnesium
Iron
Neon Mg Fe Ne
1,008 12
55,84 26
20,18 10
Simple periodic table contains symbol, atomic number and relative atomic weight of chemical elements

10. The structure of MODERN PERIODIC TABLE WHAT IS THE PERIODS?

11. The structure of MODERN PERIODIC TABLE PERIODS
Horizontal rows are called periods

12. The structure of MODERN PERIODIC TABLE PERIODS
Horizontal rows are called periods

13. The structure of MODERN PERIODIC TABLE PERIODS
Horizontal rows are called periods
There are seven periods

14. The structure of MODERN PERIODIC TABLE PERIODS1
Horizontal rows are called periods 2 3 4
There are seven periods 5 6 7

15. The structure of MODERN PERIODIC TABLE PERIODS1
Horizontal rows are called periods 2 3 4
There are seven periods 5
There are three short, two medium and two long periods 6 7

16. MODERN PERIODIC TABLE Short periods Medium periods Long periods

17. The structure of MODERN PERIODIC TABLE WHAT IS THE GROUPS?

18. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS

19. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS

20. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns

21. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns 1 18 2 13 14 15 16 17 3 4 5 6 7 8 9 10 11 12

22. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups 1 18 2 13 14 15 16 17 3 4 5 6 7 8 9 10 11 12

23. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups
There are 8 A groups and 8 B groups 1 18 2 13 14 15 16 17 3 4 5 6 7 8 9 10 11 12

24. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups 8A 1A
There are 8 A groups and 8 B groups 1 18 2A 3A 4A 5A 6A 7A 2 13 14 15 16 17 3B 4B 5B 6B 7B 8B 8B 8B 1B 2B 3 4 5 6 7 8 9 10 11 12

25. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups
There are 8 A groups and 8 B groups 8A 1A 1 18
8 B group has 3 columns 2A 3A 4A 5A 6A 7A 2 13 14 15 16 17 3B 4B 5B 6B 7B 8B 8B 8B 1B 2B 3 4 5 6 7 8 9 10 11 12

26. The structure of MODERN PERIODIC TABLE GROUPS
Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups
There are 8 A groups and 8 B groups 8A 1A 1
8B group has 3 columns 18 2A 3A 4A 5A 6A 7A 2 13 14 15 16 17 3B 4B 5B 6B 7B 8B 8B 8B 1B 2B 3 4 5 6 7 8 9 10 11 12

27. The structure of MODERN PERIODIC TABLE GROUPS FAMILY
sometimes called as 8A 1A 1 18 2A 3A 4A 5A 6A 7A 2 13 14 15 16 17 3B 4B 5B 6B 7B 8B 8B 8B 1B 2B 3 4 5 6 7 8 9 10 11 12

28. The structure of MODERN PERIODIC TABLE
Each Group or Family has specific names
Oxygen family
Noble gases
A groups are called MAIN GROUPS
Nitrogen family
Halogens
Alkali metals
Carbon family 1A
Alkaline earth metals
Earth metals 8A 2A 3A 4A 5A 6A 7A
B GROUPS are called TRANSITION METALS 3B 4B 5B 6B 7B 8B 8B 8B 1B 2B

29. ALKALI METALS
But hydrogen is nonmetals, it is located in 1A group because of its electronic configuration
1A group of periodic table is called Alkali metals.
This group contains H (hydrogen), Li (Lithium), Na (sodium), K (potassium), Rb (Rubidium), Cs (Cesium), Fr (Francium)
Alkali metals are most active metals. They can react even with air and water, so they are stored under the kerosene
Cesium is most active metal in 1A group
Alkali metals are very soft metals, so they can be cut by knife
Francium is radioactive metals

30. MODERN PERIODIC TABLE

31. Find the Element activity
Worksheet 2
Find the Element activity