Ask the right question to find the best answer

1. Ask the right question to find the best answer

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

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
Mg
1,008
12
Neon
Fe
55,84
Ne
26
Simple periodic table contains symbol,
atomic number and relative atomic weight of
chemical elements
20,18
10

10. WHAT IS THE PERIODS?

The structure of MODERN PERIODIC TABLE
WHAT IS THE PERIODS?

11. PERIODS

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

12. PERIODS

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

13. PERIODS

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

14. PERIODS

The structure of MODERN PERIODIC TABLE
1
2
3
4
5
6
7
PERIODS
Horizontal rows are
called periods
There are seven periods

15. PERIODS

The structure of MODERN PERIODIC TABLE
1
2
3
4
PERIODS
Horizontal rows are
called periods
There are seven periods
5
6
7
There are three short,
two medium and two
long periods

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

Vertical columns are called GROUPS
There are 18 columns
GROUPS
1
8
1
1
3
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
4
1
5
1
6
1
7

22. The structure of MODERN PERIODIC TABLE

Vertical columns are called GROUPS
There are 18 columns
GROUPS
Groups are classified as A and B
groups
1
1
8
1
3
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
4
1
5
1
6
1
7

23. The structure of MODERN PERIODIC TABLE

Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups
GROUPS
There are 8 A groups and 8 B groups
1
1
8
1
3
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
4
1
5
1
6
1
7

24. The structure of MODERN PERIODIC TABLE

Vertical columns are called GROUPS
There are 18 columns
Groups are classified as A and B groups
GROUPS
There are 8 A groups and 8 B groups
1A
1
2A
2
3A
1
3
3B
4B
5B
6B
7B
8B
8B
3
4
5
6
7
8
9
8B
1
0
1B
1
1
2B
1
2
4A
1
4
5A
1
5
6A
1
6
7A
1
7
8A
1
8

25. The structure of MODERN PERIODIC TABLE

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
GROUPS
1A
1
8 B group has 3 columns
2A
2
3B
4B
5B
6B
7B
8B
8B
3
4
5
6
7
8
9
8B
1
0
3A
1
3
1B
1
1
2B
1
2
4A
1
4
5A
1
5
6A
1
6
7A
1
7
8A
1
8

26. The structure of MODERN PERIODIC TABLE

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
GROUPS
1A
1
8B group has 3 columns
2A
2
3B
4B
5B
6B
7B
8B
8B
3
4
5
6
7
8
9
8B
1
0
3A
1
3
1B
1
1
2B
1
2
4A
1
4
5A
1
5
6A
1
6
7A
1
7
8A
1
8

27. The structure of MODERN PERIODIC TABLE

GROUPS
sometimes called as
FAMILY
1A
1
2A
2
3A
1
3
3B
4B
5B
6B
7B
8B
8B
3
4
5
6
7
8
9
8B
1
0
1B
1
1
2B
1
2
4A
1
4
5A
1
5
6A
1
6
7A
1
7
8A
1
8

28. The structure of MODERN PERIODIC TABLE

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

29. ALKALI METALS

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)
But hydrogen is
nonmetals, it is
located in 1A group
because of its
electronic
configuration
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. Worksheet 2

Find the Element activity