PERIODIC TABLE. MODERN PERIODIC TABLE The structure of MODERN PERIODIC TABLE MODERN PERIODIC TABLE is very important tool for chemists and scientists. - презентация

1 PERIODIC TABLE

2 MODERN PERIODIC TABLE

3 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

4 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

5 How to read the MODERN PERIODIC TABLE Mg FeNe ,008 55,84 20,18 MagnesiumIronNeon Simple periodic table contains symbol, atomic number and relative atomic weight of chemical elements

6 WHAT IS THE PERIODS? The structure of MODERN PERIODIC TABLE

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

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

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

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

11 PERIODS Horizontal rows are called periods There are seven periods The structure of MODERN PERIODIC TABLE There are three short, two medium and two long periods

12 MODERN PERIODIC TABLE Short periods Medium periods Long periods

13 The structure of MODERN PERIODIC TABLE WHAT IS THE GROUPS?

14 The structure of MODERN PERIODIC TABLE GROUPS Vertical columns are called GROUPS

15 The structure of MODERN PERIODIC TABLE GROUPS Vertical columns are called GROUPS

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

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

18 The structure of MODERN PERIODIC TABLE GROUPS Vertical columns are called GROUPS There are 18 columns Groups are classified as A and B groups

19 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

20 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 A 3A4A5A6A7A 8A 2A 3B4B5B6B7B8B 1B2B

21 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 A 3A4A5A6A7A 8A 2A 3B4B5B6B7B8B 1B2B 8 B group has 3 columns

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 There are 8 A groups and 8 B groups A 3A4A5A6A7A 8A 2A 3B4B5B6B7B8B 1B2B 8B group has 3 columns

23 The structure of MODERN PERIODIC TABLE GROUPS A 3A4A5A6A7A 8A 2A 3B4B5B6B7B8B 1B2B sometimes called as FAMILY

24 The structure of MODERN PERIODIC TABLE Each Group or Family has specific names 1A 3A4A5A6A7A 8A 2A 3B4B5B6B7B8B 1B2B Alkali metals Alkaline earth metalsEarth metals Carbon family Nitrogen family Oxygen family Halogens Noble gases B GROUPS are called TRANSITION METALS A groups are called MAIN GROUPS

25 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 Alkali metals are very soft metals, so they can be cut by knife Cesium is most active metal in 1A group Francium is radioactive metals

26 1. Divide into some group of 4 or 5 Task 1 2. Each group should make a poster of one group or family 3. Choose one of these topics: Alkaline earth metals, Earth metals, Halogens, Noble gases 4. You can use the sample on previous slide (about alkali metals) 5. Try not to use internet and any dictionary. Ask to your trainers for any questions.

27 MODERN PERIODIC TABLE

28 Vocabulary 1.Work in pairs and work with the dictionary. Write the definitions of following words. (NOT TRANSLATION!) WORDSDefinition noble gas transition metal inert element row main increasing

29 2. Reading part. Fill in the blanks. inert Vertical arranged medium transition metals periods seven elements chemical noble gases contains located electron Reading

30 3. Work in pairs, answer the following questions How are the elements arranged on the periodic table? ________________________________________________________________________ How are horizontal rows called? ________________________________________________________________________ What is the name of vertical columns in a periodic table? ________________________________________________________________________ What is the number of periods in a periodic table? ________________________________________________________________________ How many columns are there in periodic table? ________________________________________________________________________ How are A groups called? ________________________________________________________________________ What are the examples of transition metals which are belong to B group? ________________________________________________________________________ Writing and speaking

31 Grammar ……… there is (are) ……… ……… is (are) made of / is (are) called / is (are) considered ……… ……… is (are) most active / is (are) most passive / is (are) most abundant ……… ……… include(s) / contain(s) / have (has) ……… 4. GRAMMAR PART. Write 10 sentences by using the structures above. There are some examples below. Example: There are nucleus and electrons in a structure of an atom. Compounds are made of elements. Cs is the most active metal in 1A group. Water compound includes hydrogen and oxygen elements.

32 Find the Element activity Worksheet 2