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2. How are elements classified in the Periodic Table?
2. How are elements classified in the Periodic Table?
2.1 Recall that an atom is the smallest unit of an element and is represented by a unique symbol.
2.2 Using the Periodic Table, draw atoms for elements 1- 20, showing the arrangement of protons, neutrons and electrons.
2.3 Relate the position of elements in the Periodic Table, using their atomic number, number of electron shells, number of electrons in the outer shell.
2.4 Observe the physical properties of a range of elements to understand how elements are classified (e.g. states of matter, metallic character.)
2.5 State the properties of the three (3) main types of elements and use the Periodic Table to predict whether a named element is a metal, metalloid (semi-metal) or non-metal.
2.6 Design and conduct an investigation to determine the relative activity of a range of metals.
2.7 Outline some examples to show how creativity, logic and the scientific evidence available at the time contributed to the development of the modern Periodic Table.
Lesson 9 Catch up lesson
Lesson 9 Catch up lesson
Lesson 10
Lesson 10
2.0 Why classify the elements?
2.0 Why classify the elements?
Task 2.0
Revisit your classification skills to develop a dichotomous key for the alien insects.
Use Page 2 of the doc at right to help you structure the key if you would like.
9 MG 2.0 Alien Insects Act.doc9 MG 2.0 Alien Insects
2.1 Recall that an atom is the smallest unit of an element and is represented by a unique symbol.
2.1 Recall that an atom is the smallest unit of an element and is represented by a unique symbol.
Task 2.1a
Task 2.1a
View Periodic Table Song https://www.youtube.com/watch?v=1cqauZq4uYM [2.44]
View 9 MG 2.1 PT with Element Pics
Task 2.1b
On your copy, complete the Wordsearch shown below 9 MG 2.1b Element Wordsearch M PDF
Answers here.
Task 2.1b Challenge
On your copy, complete the Wordsearch 9 MG 2.1b Element Wordsearch E PDF shown below. You are given symbols but need to find the element name.
Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr.
Answers here
Task 2.1c
Read the following information:
There are only two ways to write symbols for the elements of the Periodic Table:
one capital letter e.g. hydrogen H
one capital + one lower case letter: e.g. hafnium Hf
Element symbols never have two lower case letters, and they never have two capital letters (that's a formula for a compound, e.g. HF is not hafnium, it is hydrogen fluoride). But we write the name of the element in lower case e.g. hydrogen, unless it starts a sentence.
When we write the symbol for chlorine, we use a curly l to show it is not a capital letter i, for that we use the I with the stroke across the top and bottom. Chlorine = Cl and Iodine = I
Element word challenge:
Can you write a sentence of 7 to 13 words using the chemical symbols in the Periodic Table? You may use the symbols more than once in a word.
The symbols can be used as they appear in the Periodic Table,
examples: He At = Heat; N O B O Dy = Nobody
or you can "hide" the second letter by lightly crossing through it or changing colours - I have used red),
example: I Li K Es C H O C O Lr At Eu
Task 2.1d
Task 2.1d
Quick find: 5 elements whose symbol is just a capital letter.
Quick find: 5 elements with the first letter N.
Write the symbol for the compond formed between hydrogen and chlorine.
Task 2.1e
Task 2.1e
Elements Quiz 1-20 https://www.proprofs.com/quiz-school/story.php?title=first-20-elements-in-periodic-table-elements-quiz
2.2 Using the Periodic Table, draw atoms for elements 1- 20, showing the arrangement of protons, neutrons and electrons.
2.2 Using the Periodic Table, draw atoms for elements 1- 20, showing the arrangement of protons, neutrons and electrons.
Task 2.2a
Task 2.2a
Complete 9 MG 1.1a Drawing Atoms S TF WS for elements 11-20 without using any reference material except the 9 MG 2.2a Data Sheet Neutrons table below. If you have completed this, ask your teacher for a second copy of the WS and carry out the task.
9 MG 1.1a Drawing Atoms TF S WS.docx9 MG 1.1a Drawing Atoms S TF WS
9 MG 2.2a Data Sheet Neutrons
2.3 Relate the position of elements in the Periodic Table, using their atomic number, number of electron shells, number of electrons in the outer shell.
2.3 Relate the position of elements in the Periodic Table, using their atomic number, number of electron shells, number of electrons in the outer shell.
Task 2.3
View 9 MG 2.3 Periodic Table M PPT
9 MG 2.2 Periodic Table M PPT.pptx9 MG 2.3 Periodic Table M PPT
Task 2.3
View 9 MG 2.3 Periodic Table PPT
9 MG 2.3 Periodic Table PPT.pptx9 MG 2.3 Periodic Table M PPT
Task 2.3a
Task 2.3a
Browse a copy of the laminated class Periodic Table to answer the questions below:
What determines an element's atomic number?
What is the relationship between the element's atomic number and its position on the Periodic Table?
Give each element a coordinate position e.g. chlorine is 3, 7 , which stands for row (period) 3 and column (group) 7.
Name the element at position 3,4.
What is the coordinate position of nitrogen?
What determines the period (row) number?
How many electron shells does aluminium have?
What determines the group (column) number?
How many electrons does calcium have in the outer shell?
Task 2.3b
Complete 9 MG 2.3b Periodic Table Task
9 MG 2.3b PeriodicTable Task.docTask 2.3c
Read the following information, copy and complete in your book:
Hydrogen, an element on its own
Hydrogen is so unique that its "box" could be placed in three places when the Periodic Table is drawn up.
The far left at the top. This is where it is most often placed. This is because it has _____ electrons in the outer shell, the same as _______________ . There are problems with this, as we will see in 2.4.
At the top above Group 7. This is because it has _____ electron less than a full outer shell, the same as ___________________ .
In the middle above carbon. This is because it has an outer shell that is ___________-full, the same as ________________ .
2.4 Observe the physical properties of a range of elements to understand how elements are classified (e.g. states of matter, metallic character.)
2.4 Observe the physical properties of a range of elements to understand how elements are classified (e.g. states of matter, metallic character.)
Task 2.4a
Task 2.4a
Explore the interactive Periodic Table below https://elements.wlonk.com/ElementsTable.htm. Click on the element for information.
2. Use the Periodic Table images below that show one type of information about the elements. Answer the questions below.
Where are the metals located? What do they have in common?
Where are the gases located? What do they have in common? (Ignore Hydrogen for the reasons we discussed in 2.3.)
Periodic Table with metallic character
9 MG 2.4a PT of Metallic Character M
9 MG 2.4a PT of State at Room Temp M
Task 2.4b Challenge
Task 2.4b Challenge
Explore the interactive Periodic Table below https://elements.wlonk.com/ElementsTable.htm. Click on the element for information.
Can you find elements that have similarities?
How do you think the Periodic Table has been organised?
Task 2.4a Alternative
Task 2.4a Alternative
If there are issues with connection to the interactive above, view the Periodic Table information at right.
What elements have similarities?
9 MG 2.4a PT with Element Pics
Practical 2.4
Complete the Stations practical to view a range of elements. You will move between the same set of three benches, the stations are duplicated on the other benches.
Collect safety glasses and aprons. These stay on throughout the experiment.
Collect a tray of elements. You will take this with you from station to station. Leave all other equipment on the bench, exactly as the photo shows.
Collect a mini-whiteboard. Construct a table where you will enter your results. You will copy the results into your book later.
Carefully read and follow the instructions above each station, especially where you are testing electrical conductivity.
Station 1: hardness, lustre
Station 2: thermal conductivity
Station 3: electrical conductivity
2.5 State the properties of the three (3) main types of elements and use the Periodic Table to predict whether a named element is a metal, metalloid (semi-metal) or non-metal.
2.5 State the properties of the three (3) main types of elements and use the Periodic Table to predict whether a named element is a metal, metalloid (semi-metal) or non-metal.
Task 2.5a
Construct a Venn Diagram using the template provided 9 MG 2.5a Venn Diagram Template
Enter the main characteristics of the three types of elements: metals, semi-metals and non-metals.
Choose elements to add as examples in each section based on their properties from the interactive Periodic Table below https://elements.wlonk.com/ElementsTable.htm.
2.6 Design and conduct an investigation to determine the relative activity of a range of metals.
2.6 Design and conduct an investigation to determine the relative activity of a range of metals.
Task 2.6a
Task 2.6a
View video https://www.youtube.com/watch?v=NTFBXJ3Zd_4 [1.24 start at 0.40]
Practical 2.6b
Design an experiment to test the reactivity of a range of metals.
You will have access to metals Mg, Fe, Zn, Cu, Al, Sn and reagents cold water, hot water, 0.1M HCl, 0.5M HCl. You may check with your teacher if you wish to ask for other reagents.
2.7 Outline some examples to show how creativity, logic and the scientific evidence available at the time contributed to the development of the modern Periodic Table.
2.7 Outline some examples to show how creativity, logic and the scientific evidence available at the time contributed to the development of the modern Periodic Table.
Task 2.7a
View the video https://www.youtube.com/watch?v=fPnwBITSmgU (4.24 minutes)
Task 2.7b
Working with teacher, complete the Cloze passage 9 MG 2.7b Dmitri Mendeleev Cloze Passage M. Add the words below as you read.
9 MG 2.7b Dmitri Mendeleev Cloze Passage M.docxTask 2.7b Challenge
Complete the Cloze passage 9 MG 2.7b Ch45 Mendeleev Cloze Passage independently. Use the words in order from the word bank provided.
Ch 45 Dmitri Mendeleev
1. element
2. weights, elements
3. Periodic
4. Dobereiner, 1817, features, 3
5. triad
6. chlorine, bromine and iodine
7. properties
8. 8, music, Newlands, 1863
9. Mendeleev
10. 1869, Meyer
11. groups, weights
12. 63,
13. 14, Siberia, Russia
14. glass, died
15. Greek and Latin, science, university
16. tuberculosis, mother
17. chemistry, absent, balloon, hair [or] beard
18. Table, 63,
19. unknown
20. gallium, scandium, and germanium
21. potassium and argon, weight
22. Moseley, Rutherford, nuclear, Bohr, number, rows, groups
23. noble, transuranic
24. actinides, actinides, Seaborg, USA
25. seaborgium
9 MG 2.7 Ch45 Mendeleev Cloze Passage.pdf2.8 Review
2.8 Review
Task 2.8a Just for fun
View 9 MG 2.8a Atom Puns PPT
9 MG 2.8a Atom Puns PPT.pptxTask 2.8b Review
Complete 9 MG 2.8b PT Crossword Review below.
9 MG 2.8b PT Crossword Review.pdfAnswers here
Task 2.8c Review
Complete 9 MG 2.8c Periodic Table of the Lost Civilisation M using whiteboard markers on the laminated sheet provided.
9 MG 2.8b Lost Civilisation Periodic Table M.pdfTask 2.8c Review
Complete 9 MG 2.8c Periodic Table of the Lost Civilisation using whiteboard markers on the laminated sheet provided.
9 MG 2.8b Lost Civilisation Periodic Table E.pdfTask 2.8d
Use the 9 MG 2.8d Atoms Periodic Table S PPT to complete the 9 MG 2.8d Atoms Periodic Table S Notes.
9 MG 2.8d Atoms Periodic Table S PPT.pptx9 MG 2.8d Atoms Periodic Table S Notes.docxTask 2.8e
Revision Lesson: Quizizz lesson
Quizizz: Atomic Structure 20Q joinmyquiz.com
Quizizz: Periodic Table joinmyquiz.com
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